A special mediator
A Special Mediator with enhanced authority encourages productive negotiations, identifies areas of agreement and disagreement, and—if a deal still can't be reached—recommends a path forward through an independent public report.
Only when bargaining has genuinely stalled: one more step before a disruption, not a shortcut around it.
Good-faith negotiation. Transparency raises the cost of bad-faith tactics on both sides, and takes nothing from anyone bargaining meaningfully.