We need answer complex legal analysis. Need produce final. Need carefully analyze under fictional Severn rules. Need probably structured memo/analysis. Need answer questions: analyze schedule-pay change; whether strike economic, unfair-practice, mixed, consequence mixed; significance of notice, picket signs, June 12 offer, internal email; permanent replacement rights under each; effect June 25 unconditional offer; reinstatement and back pay exposure; three misconduct cases individually; lawful immediate response for nonmisconduct strikers, replacements, bargaining process; concrete strategy rather than defending classification as label alone.

Need likely conclude: June 3 change unlawful unilateral change to mandatory subject while bargaining ongoing, no exception, material. Strike mixed motives: economic wage plus unlawful differential. Under rule 2 material contribution => unfair-practice strike (or mixed treated as unfair-practice? It says A strike may have mixed motives. It is an unfair-practice strike when an employer violation materially contributed to decision to strike or continuation, even if economic demands also existed). So classification as unfair-practice, not pure economic. Consequence: cannot permanently displace; must reinstate upon unconditional return, displacing replacements. June 25 unconditional offer triggers immediate reinstatement for nonmisconduct strikers, back pay from June 25 subject mitigation. But need nuance: if mixed, unfair-practice rights? Rule 4: Unfair-practice strikers may be temporarily replaced but not permanently displaced. Upon unconditional offer to return, entitled immediate reinstatement, displacing replacements if necessary. So yes.

But employer might argue economic. Need weigh evidence. The June 5 notice explicitly states two objectives: inadequate wage proposal and unlawful unilateral elimination. Picket signs both 6% and restore shift pay. June 12 offer to end strike if differential restored and resumed wage bargaining. This shows mixed motives and material contribution. Internal email "Cut it now... delay has a cost" shows purposeful unilateral change while bargaining; supports violation and causation. Contemporaneous notices/bargaining/strike communications relevant. The union's initial burden? Need likely met by June 3 change material, timing, communications, email. Even if primary objective wage? material part. The differential $1.75 evening shift likely material for evening shift employees; material contribution to continuation. So mixed/unfair practice.

Permanent replacement rights: If economic: replacements permanent, strikers remain employees preferential recall. If unfair-practice: temporary replacements only; no permanent displacement; reinstatement on unconditional return displaces replacements. If mixed: since violation material, unfair-practice status (maybe hybrid: no permanent replacement rights; must reinstate). If only pure economic: June 25 offer? Economic strikers not entitled immediate reinstatement over permanent replacements; only recall as vacancies. But if unfair practice, immediate.

Effect June 25 unconditional offer: For unfair-practice strikers, right to immediate reinstatement for nonmisconduct strikers; back pay from that date (or from date of strike if replacements not permanent? Rule says back pay for unlawfully denied reinstatement runs from unconditional return offer, subject to mitigation). Need note if they accepted jobs/earned earnings, mitigation reduces. If they did not earn, full back pay from June 25. Also maybe benefits? Need include.

Reinstatement exposure: 60 replacements? Need count? There are "the rest" not specified. 60 replacements hired, 12 reinstated into vacancies, rest on list. We don't know total strikers. But likely need say all nonmisconduct strikers entitled to reinstatement, displacing replacements. If 60 replacements and more strikers? We need maybe formulate: each of the nonmisconduct strikers who has not been reinstated must be reinstated immediately; if enough to fill all vacancies, replacements may be displaced to extent necessary. If fewer positions than strikers? Rule says displacing replacements if necessary. But if no vacancies and all replacements permanent? For unfair-practice, cannot permanently displace, so they can displace replacements; if more strikers than positions? Probably must reinstate all to their former positions/available positions; replacements displaced as needed; if excess, maybe lay off? Need careful: In unfair practice strike, employers cannot use permanent replacements to deny reinstatement; if there are more strikers than positions, may have to create positions? Under NLRA, unfair-practice strikers must be reinstated, with back pay; if jobs filled by replacements, employer must displace replacements. If more strikers than jobs, maybe all entitled to reinstatement and employer may have to provide work or back pay? In hypothetical, likely 60 replacements; number of strikers not specified, but reinstated only 12, rest on list. It says "placed the rest on preferential-recall list." That implies there are remaining strikers >? Maybe 60? It doesn't say total. It could be 60 replacements for 60 strikers? But "reinstated only twelve people into vacancies and placed the rest on a preferential-recall list" - if only 12 vacancies, rest not employed. Need not give exact number. Use variable N. If N nonmisconduct strikers, must reinstate N-? immediately, displacing replacements; 12 already reinstated no issue; the rest must be reinstated. Back pay from June 25 for each unlawfully denied, subject to mitigation.

Three misconduct:
1. Bottle throwing broke car window: serious property destruction? Rule: violence, deliberate property destruction, credible threats may lose reinstatement rights individually. Throwing bottle that broke car window = deliberate property destruction/violence? Yes serious strike misconduct. Even if part of mixed/unfair-practice, individual loses rights. Need due process: company must make individualized finding, give notice, opportunity to be heard? Rule 9 says employer should not terminate or deny reinstatement to entire group based on alleged misconduct by identified individuals. For individuals, must apply individual. Need likely can deny reinstatement and back pay for this person, maybe terminate. But need ensure credible video, investigation, opportunity to respond, proportionate. If misconduct occurred before return? Strike misconduct. May lose reinstatement rights individually. So no reinstatement, no back pay? If discharged for serious misconduct, likely no back pay. Need maybe if still employee? Serious misconduct can forfeit; may be terminated. Need preserve evidence.
2. Recorded threat "break your jaw": credible threat. Serious misconduct. Individual may lose rights. Need assess credibility, context; if credible threat to replacement worker, can deny reinstatement/terminate. Need individualized hearing.
3. Blocked truck entrance for seven minutes, moved when police instructed. Rule: Peaceful picketing, chanting, and blocking an entrance briefly without violence do not automatically forfeit rights. Seven minutes likely brief, peaceful, moved on police instruction; not serious. Cannot deny reinstatement based solely. Should be reinstated with nonmisconduct, back pay. Unless other evidence of violence/threats/property destruction, but facts say no. If blocking was more than brief? But rule says blocking briefly without violence do not automatically forfeit; seven minutes probably brief. It may be protected picketing/interference? Need conclude no individual denial; maybe discipline? But reinstatement rights not forfeited. If employer can discipline for obstruction? But likely protected; no denial. Need maybe if entrance blocking is unlawful? But rule specifically says do not automatically forfeit. Could still lose if violent or threats; not here. So reinstate.

Need "lawful immediate response for the nonmisconduct strikers, replacements, and bargaining process." For Ironvale: immediately withdraw preferential recall treatment, issue unconditional reinstatement notices to all nonmisconduct strikers (except the two serious misconduct maybe after individualized proceedings) to return to former jobs/similar; displace replacements to the extent necessary to make room. Notify replacements of displacement; maybe provide notice, perhaps outplacement? Severn law doesn't say, but best practice. Do not condition reinstatement on waiver, dropping claims, resignation. Resume bargaining over differential/wages; restore differential or bargain? The differential was unlawfully eliminated; need remedy: restore or bargain in good faith. Since it was unilateral change, remedy likely reinstate differential and bargain. Should immediately cease unlawful change, restore $1.75 differential (or bargain restoration) and resume good faith bargaining. Maybe if still ongoing, no further unilateral changes. For replacements: cannot treat as permanent if strike is unfair-practice; must displace them if necessary to reinstate. If some can remain? If more positions than strikers? Replacements can remain in remaining positions? Rule says unfair-practice strikers entitled immediate reinstatement displacing replacements if necessary. If there are more jobs than strikers? replacements could remain in additional jobs? But if positions were filled by replacements, need displace enough. If replacement numbers less than strikers? They can keep positions not needed for reinstatement? But if all positions were filled by strikers before? Need perhaps: replacements are no longer entitled to permanent status; employer may retain replacements only if there are more positions than nonmisconduct strikers or if business needs? But likely if replacements replaced strikers, they must be displaced to reinstate. However if there are new vacancies or positions not formerly held, replacements may remain. Need phrase: to the extent necessary to provide each nonmisconduct striker a job; replacements may remain only for positions that do not displace a returning employee, subject to no discrimination and good faith.

Bargaining process: Must restore bargaining, recognize union? No, already. Must remedy unfair practice: restore differential and bargain to conclusion of best efforts. The June 12 offer: union offered to end strike if differential restored and resumed wage bargaining; Ironvale refused. This strengthens causation and refusal to remedy. Need accept now? Immediate response: communicate restoration of differential and willingness to resume wage bargaining; if union accepts, strike over? Even if strike continues, if unconditional return? Actually June 25 unconditional return. Need maybe accept return, reinstate, then bargaining continues. Should not delay.

Concrete strategy: Do not defend as economic label. Accept legal risk; reclassify as mixed/unfair-practice; reinstate nonmisconduct; pay back pay with mitigation; individual misconduct process; restore differential; bargain; document. Need perhaps negotiate settlement? Strategy could include: (1) issue written acknowledgment that June 3 change violated duty; restore differential; (2) reinstate all nonmisconduct strikers immediately, displace replacements as needed; (3) calculate back pay from June 25, deduct mitigation, pay promptly or settle; (4) conduct individualized, documented misconduct proceedings for two serious, reinstate third; (5) resume bargaining, avoid unilateral changes, establish emergency protocol; (6) manage replacements with notice, possible reassignment, severance? (maybe not required). Also preserve evidence, not retaliate.

Need analyze under rule 8 burden: union has initial burden but evidence likely sufficient. Need maybe discuss employer's possible defenses: differential not material? But $1.75 evening shift, evening employees, timing after strike authorization, internal email, notice, picket signs. The wage demand 6% vs 2% was major, but mixed. Even if economic demand was primary, material contribution of violation means unfair-practice. Could employer argue violation not cause because strike authorized May 28 before change? Hmm facts: employees voted authorize strike if no agreement May 28. Then June 3 change. June 5 notice says strike over wage proposal and unlawful unilateral elimination. If strike not yet? It says issued strike notice June 5; replacements June 10; maybe strike began? Need maybe strike began after notice, but authorization was before. The violation occurred before formal strike notice but after strike authorization. Material contribution to decision to strike or continuation. The union demanded restoration June 4, strike notice June 5. So violation caused/continued. Employer email shows intent to pressure. So burden met.

Need maybe address "schedule-pay change" term: It's a unilateral elimination of evening-shift differential, a mandatory subject (wages/compensation) while bargaining ongoing. Rule 5: material unilateral change absent agreement, past practice, emergency. Never previously changed without bargaining, no emergency. Thus violation. Material? $1.75 per hour? "evening-shift differential" likely wage. Elimination reduces pay. Internal email confirms unilateral and coercive. So unlawful.

Need maybe discuss "mixed motives consequence" under Severn: It is unfair-practice strike if material contribution. So not just economic. The consequence: permanent replacements not permissible; reinstatement rights. Mixed motives does not dilute unfair-practice remedy if material violation. Need maybe note classification is not binary label; materiality controls.

Potential nuance: If strike has mixed motives, maybe the portion due to unfair practice vs economic? Rule 2 says "It is an unfair-practice strike when an employer violation materially contributed to the decision to strike or to continuation of the strike, even if economic demands also existed." So entire strike gets unfair-practice status? It seems yes. The consequence: can't permanently displace. Need maybe say not a pure economic strike; even if wages also at issue, unfair-practice protections attach.

Back pay: Rule 7: runs from unconditional return offer, subject to mitigation. The June 25 offer. But if some nonmisconduct strikers already reinstated into vacancies (12), no back pay? They were reinstated; maybe if denied? They got jobs, maybe no back pay unless lower wages. The rest denied. Back pay from June 25 to reinstatement, less earnings/interim income. Also maybe benefits, pension? Could mention subject to deductions. Need maybe if they accepted employment with other employer, must make reasonable efforts to mitigate; not required to accept work? Usually must make reasonable efforts. Could say back pay = lost wages and benefits from June 25 minus interim earnings and amounts reasonably avoidable. Need if they continued to strike? Unconditional offer means if they didn't return, not protected? But they did? The company says placed on list. For unfair-practice strikers, unconditional return offer entitles immediate reinstatement; if they accepted? If some refused? Need maybe if they refused reinstatement, back pay stops when refusal. But facts: union made unconditional written offer for every striker to return; Ironvale reinstated only 12, placed rest. It doesn't say individual refusals. Need assume nonmisconduct strikers sought return. For those who have not accepted due to job loss? We can say for each who timely seeks reinstatement and has not abandoned/misconducted, back pay from June 25 to actual reinstatement, subject to mitigation. If they accepted other jobs, deducted.

Permanent replacement rights under each classification: Need table maybe. Economic: permanent replacements okay, no immediate reinstatement; preferential recall; no back pay for denial unless violation. Unfair-practice: temporary replacements only; immediate reinstatement upon unconditional return; replacements displaced; back pay. Mixed: if material violation, unfair-practice controls; permanent replacement rights lost; if violation immaterial then economic? But here material. Need maybe discuss if only temporary? Also economic strikers may lose permanent employee status if replaced? Rule 3 says remain employees entitled preferential recall. Unfair practice: not permanently displaced.

Need "lawful immediate response" maybe step-by-step:
- Send notice to union and each nonmisconduct striker: Ironvale will restore differential and reinstate all nonmisconduct strikers to former positions effective immediately; report to work date/time; benefits restoration; no condition.
- Notify replacements: their positions will be vacated/displaced to reinstate; provide statutory notice if any; may be assigned to open positions, if any, but cannot block reinstatement; do not discriminate.
- For two misconduct: initiate individual investigation; if credible after hearing, deny reinstatement/terminate; preserve evidence; document. For third: include in reinstatement; if employer has legitimate non-discriminatory reason, but likely no.
- Bargaining: cease unilateral changes; restore differential; meet promptly; bargain over wages; maybe propose 2%? But must negotiate in good faith; no surface bargaining. If union accepts restoration, strike may end? But return offer already. Need resume bargaining. If impasse? Need final offer? But not necessary.
- Back pay: calculate and pay, or negotiate; maintain records; mitigation.
- Compliance: training managers, no unilateral changes during bargaining, emergency protocols, strike conduct policies, communications.

Need perhaps mention "rather than defending classification as label alone": Strategy: treat as unfair-practice from the start to avoid liability; don't litigate whether "economic" if evidence strong; use settlement. But maybe also preserve defenses? Need "concrete strategy Ironvale should adopt rather than defending the classification as a label alone." Means they should not just argue economic label; should remediate. Could say: adopt a mixed-strike remedial strategy: acknowledge material violation, restore rights, reinstate, pay, individualize misconduct, bargain. If they want to contest, they'd need to prove violation not material or no material contribution, but facts make that weak. Better to minimize exposure.

Need maybe include legal risk assessment: high. If board/arbitrator finds unfair-practice, Ironvale's permanent replacement designation unlawful; back pay exposure potentially large. The internal email is bad. June 12 offer shows company's refusal caused continuation. Replacements may have claims? If displaced, maybe no damages? But maybe if replacements were permanent and later laid off, maybe wrongful? Under law, if strike is unfair-practice, replacements were not lawful permanent; but they may have relied. Not in rules. But strategy: negotiate separation terms, notice.

Need maybe discuss burden of proof and evidence: Under rule 8, union initial burden: material contribution. Contemporaneous notices, bargaining records, strike communications relevant. Evidence: June 3 change; June 4 demand; June 5 notice; picket signs; June 12 offer; email. Employer can counter: economic demand was primary, strike authorized before change, employees would have struck over wages. But material contribution can be shown by: violation occurred just before strike, was specifically cited, restoration offered as condition to end, internal purpose. Even if economic demand was substantial, material part enough. Need maybe weigh: The union's June 12 offer: end strike immediately if differential restored and resumed wage bargaining. This is powerful: it shows differential was a discrete cause of continuation. It doesn't prove all strikers motivated, but material part. The internal email shows company intended to impose cost, supporting violation and causation. Picket signs both messages: mixed motives. Notice: expressly dual objective. So likely meet burden.

Need maybe address "schedule-pay change under bargaining rule" with elements:
1. Mandatory subject? yes wages/compensation.
2. Bargaining ongoing? began May 1, no agreement, strike authorization but bargaining continued (facts say while bargaining continued). yes.
3. Material unilateral change? elimination of $1.75 differential. yes.
4. Exception? no agreement, no established past practice (company had never changed without bargaining), no genuine emergency. yes violation.
5. Materiality/consequence: likely material for evening shift; internal email. Could be de minimis? $1.75 likely not de minimis. Need perhaps if small percentage? But rule doesn't require de minimis? Material unilateral change; $1.75 hour shift differential likely material. Need say if only small for some? The change affected a group, but at least material part of employees; for strike overall? It can contribute. Need maybe if only evening shift? If evening shift employees were significant, material. Even if few, if contributed to decision/continuation, enough. The facts likely intend violation.

Need maybe discuss "unilateral change while bargaining ongoing" after strike authorization? Ongoing bargaining? They began May 1, union demand 6%, offer 2%; on June 3 bargaining continued. Even if employees authorized strike, bargaining not at impasse? Need maybe no formal impasse. The unilateral change was not emergency. So violation.

Need maybe mention "material contribution to decision to strike or continuation". The strike notice June 5 after change. The union demanded restoration June 4 and called unlawful. The June 12 offer to end if restored. So causation strong. Could maybe strike had already begun June 5? Yes.

Need maybe address "unlawful immediate response" vs "lawful immediate response". Need maybe include do's and don'ts.

Potential final structure:
- Short conclusion/summary.
- I. June 3 change: violation.
- II. Strike classification: mixed, unfair-practice due material contribution; consequences.
- III. Evidentiary significance of documents.
- IV. Replacement rights by classification.
- V. Effect of June 25 unconditional return.
- VI. Reinstatement and back pay.
- VII. Individual misconduct cases.
- VIII. Immediate lawful response: nonmisconduct strikers, replacements, bargaining.
- IX. Recommended strategy/risk management.

Need maybe include table for misconduct and response.

Need be precise about "economic strikers remain employees" vs "unfair-practice strikers may be temporarily replaced but not permanently displaced". If strike is unfair-practice, all nonmisconduct strikers are unfair-practice strikers? In mixed-motive, yes. But could some strikers purely economic? Rule maybe individual? It says strike may have mixed motives. It is an unfair-practice strike when violation materially contributed. Could the status apply to strike as whole. But if some strikers only economic? Not specified. Under Severn rule, classification of strike. We can say absent individualized showing that a particular striker's participation was wholly economic and not influenced? Rule doesn't provide individualized carve-out. But maybe if some strikers were motivated solely by wages, still if strike as whole is unfair-practice? Hmm. In NLRA, mixed-motive strike can be both; employer's unfair practice can deprive entire strike of economic strike status if material. There is no need to sort individual strikers except misconduct. So all nonmisconduct strikers entitled. But maybe if an individual striker can show only economic? Not in facts. We should not overcomplicate but note that individual misconduct is the only individualized forfeiture.

Need consider if the June 25 unconditional offer was for every striker to return. If some strikers committed serious misconduct, can employer still exclude? Rule 6 says may lose rights individually. So yes.

Back pay for misconduct? Serious misconduct forfeits reinstatement rights; likely no back pay. For the third, back pay. For the two, maybe if discharged, no back pay; if they were still on recall? Need maybe if they are still employees? They may have lost right. Need maybe they can be terminated. Need due process: individualized, credible, not group. Need maybe if threat was made during strike but not to employer? Rule includes credible threats generally? "including violence, deliberate property destruction, or credible threats" maybe in strike context. So yes.

Need maybe discuss "credible threats" requires objective reasonable person, not just hyperbole. "Break your jaw" to replacement likely credible in context. Need perhaps require investigation and hearing. If not credible, cannot deny. But facts say recorded threat, likely credible. Need say likely may deny, but must follow individualized procedure.

Need maybe discuss "blocking entrance for seven minutes" could be an unlawful lockout? It's picketing. Rule says peaceful picketing, chanting, and blocking an entrance briefly without violence do not automatically forfeit rights. It doesn't say it's protected absolutely; but for reinstatement rights, no automatic forfeiture. So employer cannot deny based solely. Could maybe still be subject to lawful discipline for trespass? But rule suggests brief blocking no automatic forfeit. To be safe: unless additional unlawful conduct, should not deny; if company wants to discipline, must show separate unlawful conduct and not retaliate. But immediate response: reinstate.

Need maybe discuss "permanent replacement rights under each classification" if employer was wrong? If it hired permanent replacements on June 10, before June 25. If strike is unfair-practice, permanent replacement designation invalid; replacements are temporary. If economic, valid. If mixed but not material? maybe economic? But here material. Need maybe say under correct classification, the June 10 action is unauthorized; the company's designation as permanent has no continuing effect. But perhaps replacements hired in good faith based on mistaken classification? Law may still require displacement. No exemption for good faith. Need mention.

Need maybe address "back pay running?" Yes, if Ironvale denies reinstatement to nonmisconduct strikers after June 25, back pay is accruing from June 25 until reinstatement, reduced by mitigation. It is not running for those already reinstated, or for individuals who forfeited, or if they refuse. For replacements? Not relevant. For the 12 reinstated, no back pay for denial (maybe if lower wages). For the rest, yes.

Need maybe include "unconditional offer" nuance: It must be unconditional (no requirements to drop grievances, cease picketing, accept lower wages?). The union's written offer for every striker to return likely unconditional. If employer conditions, back pay continues. If employer asks them to wait, not unconditional. Need immediate reinstatement not just list. Need maybe "preferential recall list" is proper only for economic strikers, not unfair-practice. For unfair-practice, list does not satisfy reinstatement; back pay accrues.

Need maybe discuss "if employer has no jobs": Under unfair-practice, must reinstate even if replacements in place; displacement. If all positions filled by replacements, displace replacements. If more strikers than positions, may need to create positions or pay back pay? Let's think. In NLRA, if unfair-practice strikers are more numerous than jobs, employer must reinstate as many as possible? Actually Board has required reinstatement and back pay; if insufficient jobs, employer may have to create jobs or pay back pay? The rule here: "Upon an unconditional offer to return, they are entitled to immediate reinstatement, displacing replacements if necessary." It doesn't address excess. But we can say to the extent there are positions, displace replacements; if positions are fewer than nonmisconduct strikers, Ironvale cannot simply leave them on recall list; it must make good faith efforts to provide available work or continue back pay/seek remedy. But maybe not necessary. To be safe: "displacing replacements if necessary" implies enough positions? If not, still unlawful to deny reinstatement; back pay may continue or other remedy. We can note: If the number of returning strikers exceeds jobs that can be restored by displacing replacements, the employer cannot avoid liability by placing them on a recall list; it should immediately confer with the union and Board/arbitral remedy, and back pay for denied work may continue subject to mitigation. But maybe too much. The facts likely have 60 replacements, maybe 72 strikers? 12 vacancies, rest? We can use "to the extent necessary" and "if more nonmisconduct strikers than positions, the risk of ongoing back pay and injunctive relief increases; negotiate a restoration plan." Need not overstate.

Need maybe mention "preferential recall list" for nonmisconduct if economic? Under economic, that would be lawful, but here not. For unfair-practice, list is inadequate.

Need maybe discuss "mixed motives consequence" in terms of "material contribution" not "predominant motive." Rule 2 uses material part. So even if 6% wage demand was dominant, the differential contributed materially. Need maybe say employer cannot win by showing economic motive was also present or even dominant. Need show violation did not materially contribute. But with evidence, hard.

Need maybe include "burden shifting": union initial burden; once met, employer bears burden to show nonmaterial or exception. Employer has no exception. Internal email undermines. So likely.

Need maybe mention "notice and picket signs" not merely rhetoric; they are evidence of purpose and material contribution. The internal email is direct evidence of employer's intent to impose cost and no emergency. The June 12 offer is decisive: union tied end of strike to restoration; Ironvale's refusal prolonged. It may also show good faith? Actually union good faith. Ironvale refusal to restore supports violation and continuation.

Need maybe mention "schedule-pay change" maybe "schedule" not schedule of hours? It's evening differential. Could be a mandatory subject of wages. Need call it "wage/compensation".

Need maybe include "lawful immediate response for bargaining process":
- Restore differential immediately or at least offer to restore and bargain? Since unlawful unilateral change, remedy is restoration. Could Ironvale simply bargain? Rule 5 says violation if making material unilateral change absent agreement. To cure, restore. It might restore and then bargain over it? Since it was unilateral, must be restored; subsequent bargaining can modify by agreement. If it continues not restoring, ongoing violation. So immediate: reinstate pay.
- Resume negotiations promptly; no further unilateral changes; if impasse, final offer? But not in rules. Could say negotiate to conclusion of best efforts; document proposals. Avoid "surface bargaining".
- If union seeks unfair-practice remedy, respond with remedial action.

Need maybe discuss "permanent replacements" if strike is mixed: They may be temporary. But what about replacements who are permanent employees from outside? They may not have any claim, but must be displaced. If they are employees, employer may have to provide notice or pay in lieu? Not in rules. Strategy: give reasonable notice, consider reassignment, separation pay to reduce tension, but not required.

Need maybe include "concrete strategy" maybe numbered action plan with deadlines:
1. Today: withdraw permanent replacement designation; send reinstatement letters to all nonmisconduct strikers; set return date; restore differential; communicate to union.
2. Within 24-48 hours: displace replacements as needed; notify them; offer open positions or separation terms.
3. Within one week: calculate back pay; propose mitigation deduction process; pay or escrow; negotiate settlement.
4. Conduct misconduct hearings for two; decide; reinstate third.
5. Resume bargaining; schedule meetings; no unilateral changes; establish compliance.

Need maybe mention "documentation" and "no retaliation".

Need maybe answer in legal memo style: "To: Ironvale Components; From: Counsel; Re: ...". Could be helpful. Need maybe include "Assumptions". Need maybe use headings.

Need ensure no hallucinated law beyond given. Use Severn rules. Need maybe cite rule numbers.

Potential final answer:

**Bottom line**: June 3 change violates duty to bargain. Strike is mixed-motive but because unlawful change materially contributed, it is an unfair-practice strike under Severn law. Ironvale's permanent replacement designation is invalid. The June 25 unconditional return offer triggers immediate reinstatement for nonmisconduct strikers, displacing replacements. Back pay runs from June 25 for each nonmisconduct striker not reinstated, subject to mitigation. Two named strikers with serious misconduct can be denied individually after due process; third should be reinstated. Ironvale should not litigate "economic" label; it should immediately restore differential, reinstate, displace replacements, pay/settle back pay, individualize misconduct, and resume bargaining.

Need detailed.

Let's think of any nuances:
- The strike authorization vote was May 28, before June 3 change. Does that weaken material contribution? The employer could argue employees already authorized strike for economic reasons; June 3 change didn't cause initial strike. But rule includes continuation and decision to strike. Even if authorization before, actual strike notice after change and communications cite differential. Also material contribution to continuation. The June 12 offer to end if restored shows continuation. So yes.
- The union demanded restoration June 4 and called change unlawful. This may be a grievance? If employer refused, strike. But unilateral change occurred while bargaining ongoing. Even if union could have filed unfair labor practice charge, employer's refusal to restore prolongs. Need maybe mention that employer had clear option to restore and avoid strike/prolongation; refused.
- The company hired replacements June 10, five days after change, before June 25. If they thought economic, maybe good faith. But law not good faith. Could maybe reduce bad-faith damages? Not in rules. But internal email shows bad faith? "Cut it now... delay has a cost." This could be evidence of coercive purpose, but not necessarily unlawful? It supports violation. It might be used to infer motive. Could be a bad-faith bargaining issue? Rule 5 only unilateral change. Could be unfair labor practice for coercive bargaining? Not listed, but maybe. Need not extend.
- "material unilateral change to a mandatory subject while bargaining is ongoing". Bargaining ongoing despite strike? Usually yes. The company cut while bargaining continued. Even if employees authorized strike, bargaining not terminated. If strike began, bargaining may continue. Need say.
- "established past practice" - company had never changed differential without bargaining, so no past practice. "genuine emergency" - none. So violation clear.
- "material" could mean not de minimis. $1.75 differential likely material. If it was for some employees only, still material to those and to strike. Need maybe if it was small relative to wage? But the rule says material; $1.75/hour may be material. We can say on these facts, a trier would likely find material, especially given timing and communications. If it were truly de minimis, analysis differs, but not here.
- Mixed motives: Under rule 2, "caused or prolonged at least in material part". Need maybe use exact.

Back pay details:
- Back pay from June 25 unconditional offer. If reinstated July 1, back pay for 6 days. Subject to mitigation: interim earnings, reasonable job search. Also maybe if benefits not restored, value of benefits. Need maybe if employer deducted? Could mention.
- Does back pay run from earlier date if replacements not permanent? Rule says from unconditional return offer. So not from strike start. But maybe if employer's unlawful refusal to restore differential caused continued strike, could back pay from earlier? Under given rule 7, specifically for unlawfully denied reinstatement runs from unconditional return offer. So answer: not for the period before June 25 under this rule. But if ongoing violation? Hmm. Need maybe say under the stated back-pay rule, the reinstatement back-pay clock starts June 25; any remedy for the earlier refusal to restore differential may be separate (restoration, possibly damages if available) but the prompt asks reinstatement back pay. Need not overcomplicate. Could mention "The pre-June 25 exposure is not back pay for denial of reinstatement under rule 7, but the June 3 violation itself may require restoration and possibly other relief." But maybe not needed. However user asks "whether back pay is running" likely after June 25. Need say yes from June 25 for nonmisconduct. For the 12 reinstated, no. For misconduct, no. For replacements? no.

Need maybe mention "unconditional offer" if Ironvale's reinstatement of 12 into vacancies was not immediate for all; for rest, denial. The list is not an unconditional return offer? The union made unconditional offer. Ironvale accepted for 12 but not all. For rest, they are unlawfully denied.

Need maybe "permanent replacement rights under each classification" maybe table:
Classification | Replacement rights | Reinstatement | Back pay
Economic | Permanent replacements allowed | No immediate reinstatement; preferential recall | No reinstatement back pay absent violation
Unfair-practice | Temporary only; no permanent displacement | Immediate on unconditional return; displace replacements | Back pay from return offer, mitigation
Mixed (material violation) | Treated as unfair-practice; permanent replacement defense fails | same | same

Need maybe include if mixed but violation immaterial: economic. But here material.

Three misconduct cases individually:
1. Bottle: Violent/property destruction. Video. Serious. Can deny reinstatement and maybe terminate. Need process: investigate, notice, hearing, opportunity to present, decision. If upheld, no reinstatement/back pay. If not, must reinstate. Need maybe not group.
2. Threat: Credible threat. Need determine credibility. Recorded threat to replacement. Likely serious. Same process. If upheld, deny.
3. Blocking: Seven minutes, moved. Protected/brief. No automatic forfeiture. Must reinstate and back pay. Could maybe if employer believes unlawful obstruction, need separate proof and not automatically deny; but based on facts, no forfeiture.

Need maybe "lawful immediate response for the nonmisconduct strikers, replacements, and bargaining process" perhaps separate sections:
- Nonmisconduct strikers: issue reinstatement notices, restore jobs/pay/benefits, back pay, no conditions, no group exclusion.
- Replacements: notify, displace as necessary, do not allow them to block; maybe reassign to vacancies; no retaliation against them; if they refuse to vacate? They are at will? In law, employer can direct. If replacements are employees, can reassign or terminate if necessary? But permanent replacement rights lost. It may need to lay them off. Provide notice.
- Bargaining: restore differential, resume bargaining, no unilateral changes, maybe accept June 12 offer? Actually June 12 offer was to end strike if restored and resumed wage bargaining. Now return offer. Immediate response: agree to restore and resume; perhaps propose schedule. If union still picketing? Reinstatement may end. Need not force union to withdraw strike? But if all reinstated, strike ends. If some continue, individual? Need maybe say if nonmisconduct return, picketing should end; if not, no coercion.

Concrete strategy: Instead of defending label, adopt "remedial capitulation"? Maybe "de-escalate and remediate". Need maybe include negotiation: offer settlement to union: immediate restoration, reinstatement, back pay, individual hearings, no admission? But legal analysis says violation. Strategy maybe: "Do not spend resources trying to relabel a mixed-motive strike as economic when contemporaneous evidence will not support it. Use the June 25 offer as the remedial trigger." Could say: "Ironvale can still contest individual misconduct, mitigation deductions, and scope of back pay, but it should concede the material contribution issue to limit ongoing accrual." That's concrete.

Need maybe include "risk if continue current course": continued back pay accrual daily for all nonmisconduct; potential award for all; replacement displacement; damages; adverse credibility from email; possible injunction. If economic defense fails, worse due delay. So strategy: immediate corrective action.

Need maybe include "evidence preservation": preserve email, video, recordings, picket signs, bargaining notes; litigation hold. Also do not destroy.

Need maybe include "communications to employees": careful, no threats, no statements that strike was unfair? But can state legal obligations. No retaliation.

Need maybe mention "the union's initial burden" in strategy: If Ironvale wants to defend, it must attack materiality/causation. But evidence: June 5 notice, picket signs, June 12 offer, email. It's difficult. So not worth.

Need maybe discuss "mixed motives and individual strikers" maybe if some strikers were only economic, but Severn rule's material contribution to continuation likely covers all? Need maybe: Because the violation contributed to continuation of the strike as a whole, the strike is an unfair-practice strike; individual economic motives do not carve out permanent replacement rights unless individual misconduct. If a particular striker can show they were not an unfair-practice striker? The rules don't mention; avoid.

Need maybe mention "temporary replacement" definition? Not needed.

Potential final with headings and maybe tables. Desired oververbosity 9, so thorough. Need not be too short. Need ensure final answer directly addresses all bullets.

Let's draft final.

Possible final:

**Memo**

**Issue**: etc.

**Short answer**: etc.

**1. June 3 change**:
- elements and conclusion.

**2. Strike characterization**:
- mixed motives, material contribution, unfair-practice. Consequences.
- address employer counterarguments.

**3. Significance of evidence**:
- June 5 notice: dual objectives; picket signs: mixed; June 12 offer: material to continuation; internal email: violation, purpose, no emergency; bargaining records.

**4. Replacement rights by classification** table.

**5. June 25 offer**:
- triggers immediate reinstatement for unfair-practice strikers; list inadequate; displaces replacements; back pay.

**6. Reinstatement/back pay**:
- Nonmisconduct: all, displace replacements. 12 already okay. Rest: immediate. Back pay from June 25, mitigation. Misconduct: no if forfeit. If refusal, stops. Calculate.

**7. Misconduct** table.

**8. Lawful immediate response**:
- nonmisconduct strikers: written notices, report back, restore wages/benefits, no conditions.
- replacements: displace as necessary, notice, reassign/open positions, no interference.
- bargaining: restore differential, resume, no unilateral changes, meet, perhaps accept June 12 terms.

**9. Strategy**:
- Do not defend economic label. Concede material violation; act to stop accrual; individualize; settle; compliance.

Need maybe include "back pay is running" explicitly: yes for each nonmisconduct striker not reinstated since June 25. For 12 reinstated no. For misconduct no. For third yes. For replacements no.

Need maybe include "permanent replacement rights under each classification" with "If pure economic: June 10 replacements could remain and June 25 offer only recall; if unfair-practice: cannot; if mixed: unfair-practice if material; here material." Good.

Need maybe include "consequence of mixed motives": Not safe harbor; material violation deprives employer of permanent replacement defense. Need maybe "the economic demands do not immunize the strike."

Need maybe consider if "unfair-practice strike" vs "mixed" label: The assignment asks "whether the strike was economic, unfair-practice, or mixed, and the consequence of mixed motives." We can say factually mixed motives, but legally treated as unfair-practice because material contribution. Or "mixed-motive unfair-practice strike." Under Severn rule 2, mixed-motive strike is an unfair-practice strike when violation materially contributed. So answer: mixed in motive, unfair-practice in legal effect. Need be clear.

Need maybe mention "economic strike" definition: objective to obtain wages/hours/concessions. Here wage objective present. But not exclusive. So not purely economic.

Need maybe mention "unfair-practice strike" definition: caused or prolonged at least in material part by employer's unfair labor practice. Here June 3 change, material. So yes.

Need maybe mention "if Ironvale had restored differential on June 4 or 5, maybe strike would have been economic or ended?" But not necessary. Could mention in causation.

Need maybe mention "the company's internal email 'Cut it now...' is adverse: shows the change was not administrative, not emergency, but a bargaining tactic; undermines any claim that it was immaterial or not a violation." Good.

Need maybe mention "the union's June 12 offer: end strike immediately if restoration and resumed wage bargaining. Ironvale refused. This is strong evidence that the violation prolonged the strike and that Ironvale had a clear chance to stop it." Good.

Need maybe include "The burden under rule 8: union has initial burden; likely met; employer's burden would be to show not material or exception; fails." Good.

Need maybe discuss "serious strike misconduct" and "credible threats" need individualized. Could include standard: (1) notice of allegations, (2) opportunity to respond, (3) decision based on credible evidence, (4) no group action, (5) documentation. Need maybe if the bottle thrower also threatened? Not facts. Separate.

Need maybe discuss "third blocking" could be subject to a court injunction if obstructive, but reinstatement rights remain. Since moved when police instructed, likely protected. If company wants to exclude, must show more than brief peaceful blocking; not present. Good.

Need maybe mention "the remaining strikers not tied to misconduct" cannot be punished for others' misconduct (rule 9). Good.

Need maybe mention "if Ironvale continues to place nonmisconduct strikers on recall list, it will be accruing back pay daily and risk of enhanced sanctions/injunction." Good.

Need maybe include "the 12 reinstated into vacancies" maybe if they accepted? They may have been reinstated after June 25? It says Ironvale reinstated only twelve people into vacancies and placed the rest on list. If those 12 were reinstated immediately? Maybe after June 25. If they were not immediate? It says reinstated; assume immediate. No back pay if timely. If delayed? Could be back pay from June 25 until reinstatement if not immediate. Need mention: The 12 already reinstated have no ongoing denial, but if reinstatement was delayed after June 25, back pay may run to date of actual reinstatement. Good nuance.

Need maybe include "back pay subject to mitigation" means employer can require proof of interim earnings, reasonable job search; cannot over-deduct; must process fairly.

Need maybe include "if a striker accepted a job elsewhere, back pay reduced by earnings; if did not, must show reasonable efforts." Good.

Need maybe include "restoration of benefits" maybe back pay includes wages and benefits? Rule says back pay; could include lost wages and benefits. Need say "wages and benefits to the extent required by Severn law" maybe.

Need maybe include "unconditional offer" means no requirement to quit union, waive claims, accept less favorable terms. If Ironvale conditions, not effective. Need say.

Need maybe include "permanent replacements may be retained if there are more positions than returning employees"? Let's formulate carefully:
- If the number of nonmisconduct strikers is less than or equal to the positions previously held, displace replacements to give them jobs.
- If there are additional positions (e.g., expansion) or replacements were hired into positions not previously held, they may remain in those positions, provided that no nonmisconduct striker is denied a job. But if replacements occupied strikers' former jobs, they must vacate. Since facts don't specify, say "to the extent necessary." Good.

Need maybe include "economic striker preferential recall" if misclassified? If pure economic, June 25 unconditional offer does not create immediate reinstatement; only as vacancies. But here not.

Need maybe include "mixed motives: if violation only immaterial, permanent replacements allowed; if material, no." Good.

Need maybe include "the employer's unilateral change remedy: restore differential, not just bargain"? Under duty to bargain, employer cannot unilaterally change; remedy is to restore status quo and bargain. Since no emergency, must restore. Could Ironvale say it will bargain over differential? If it continues to withhold, ongoing violation. So immediate restore. If union demands restoration, employer must grant. Subsequent changes only by agreement. Good.

Need maybe include "bargaining process: If union wants to end strike, accept restoration and resume wage bargaining. If Ironvale refuses, it is prolonging and back pay continues. The June 12 offer is still relevant." Good.

Need maybe include "strategy: maybe negotiate a global settlement: restoration, reinstatement, back pay, individual hearings, release of claims, no admission, compliance plan." Good.

Need maybe include "Do not send group denial letters." Good.

Need maybe include "Do not condition reinstatement on withdrawal of unfair labor practice charge." Good.

Need maybe include "Preserve video and recordings; if threat is credible, consult local law enforcement?" Not necessary but maybe.

Need maybe include "If replacements challenge displacement, Ironvale can point to legal classification; but should be humane." Not needed.

Let's ensure no conflict: Rule 6 says "Employees who commit serious strike misconduct, including violence, deliberate property destruction, or credible threats, may lose reinstatement rights individually. Peaceful picketing, chanting, and blocking an entrance briefly without violence do not automatically forfeit rights." So for bottle and threat, "may lose" not automatically. Need say employer can lawfully deny if after individualized determination. Need not say definitively "will lose" but likely. Use "should be eligible to deny" or "likely may be denied". Need be precise: "The facts, if credited, state a basis for individual forfeiture." For bottle: deliberate property destruction. For threat: credible threat. For blocking: no forfeiture. Need maybe if the threat was not credible? But recorded and to replacement; likely credible. Need say employer must make finding.

Need maybe discuss "credible threats" maybe if made to replacement worker during strike, can be basis. Need maybe if it was a "fighting words" not criminal? But rule includes credible threats. Need not go into criminal law.

Need maybe include "the employer should not deny reinstatement to the entire group based on alleged misconduct by identified individuals." This is rule 9. Need explicitly say.

Potential final answer length: maybe 2500-3500 words? Oververbosity 9. We can produce detailed but not insane. Let's aim 2500-3500 words. Need use headings and bullets/tables.

Let's draft final carefully.

Begin:

"Assuming the Severn rules are exclusive and facts are as stated, Ironvale is exposed to a mixed-motive/unfair-practice strike classification. The safest and legally correct course is to treat the nonmisconduct strikers as unfair-practice strikers."

Then sections.

Need maybe include "Conclusion at top" with bullets.

Let's write final.

Double-check all user bullets:
- Analyze June 3 schedule-pay change under bargaining rule. Yes.
- Whether strike was economic, unfair-practice, or mixed, and consequence of mixed motives. Yes.
- Significance of June 5 notice, picket signs, June 12 offer, internal email. Yes.
- Permanent-replacement rights under each classification. Yes.
- Effect of June 25 unconditional return offer. Yes.
- Reinstatement and back-pay exposure. Yes.
- Three misconduct cases individually. Yes.
- Lawful immediate response for nonmisconduct strikers, replacements, bargaining process. Yes.
- Concrete strategy rather than defending classification as label alone. Yes.

Need maybe include "schedule-pay change" maybe "evening-shift differential" not schedule? Use both.

Potential legal nuance: "economic strikers remain employees entitled to preferential recall as vacancies arise." If the strike is unfair-practice, do they remain employees? Yes. But permanent replacement not allowed. Good.

Need maybe mention "if employer treats as economic but wrong, the preferential recall list is unlawful for nonmisconduct after unconditional offer." Good.

Need maybe mention "back pay runs from June 25, not from June 10 or June 5, for reinstatement denial." Good.

Need maybe mention "if Ironvale had reinstated all on June 25, no ongoing back pay; but it didn't." Good.

Need maybe mention "the 12 into vacancies" maybe if they were not all immediate? We'll nuance.

Need maybe mention "The internal email is not merely motive; it also rebuts emergency and shows the change was a deliberate bargaining pressure tactic." Good.

Need maybe mention "The union's burden under rule 8: It can point to contemporaneous evidence; likely satisfied; Ironvale would need to rebut materiality. The internal email makes that hard." Good.

Need maybe mention "mixed motives: The 6% demand and 2% offer are economic; the differential is unfair-practice. Mixed does not mean split rights; if material, unfair-practice rights apply." Good.

Need maybe mention "If the differential had been immaterial, the strike might be economic; but $1.75 for evening shift and specific communications make it material." Good.

Need maybe mention "No established past practice: company had never changed without bargaining." Good.

Need maybe mention "No genuine emergency: none stated." Good.

Need maybe mention "bargaining ongoing: May 1 start, no agreement, June 3 while bargaining continued; strike authorization doesn't terminate duty." Good.

Need maybe mention "material unilateral change while bargaining ongoing" exactly.

Need maybe include "unlawful unilateral change can be a separate unfair labor practice remedy, independent of strike classification." Could mention.

Need maybe include "restoration of differential is likely required regardless of strike outcome." Good.

Need maybe include "back pay exposure for the 12? If they were reinstated into vacancies, maybe if vacancies were not their old jobs? If lower wage, back pay differential." Could mention: if reinstated to inferior positions, back pay for wage differential. But facts say into vacancies. Could say "If any of the 12 were delayed or placed in inferior jobs, back pay may run for the period of delay or wage loss." Good nuance.

Need maybe include "for nonmisconduct strikers, reinstatement should be to former jobs or substantially equivalent." Good.

Need maybe include "for replacements, if displaced, they may have common-law or Severn claims? Not in rules. Strategy: notice and separation." Good.

Need maybe include "Do not allow replacements to interfere with reinstatement." Good.

Need maybe include "Bargaining: If Ironvale had an unfair practice, it must remedy and bargain; refusal to restore on June 12 worsens." Good.

Need maybe include "Concrete strategy: 'concede the legal classification, manage the remedy'." Good.

Let's write final now. Ensure no analysis in final. Use clear formatting.