Two experienced RNs on a 24-bed step-down telemetry unit openly disagree during shift huddle about whether float nurses should take high-acuity assignments. One RN cites fairness; the other cites patient safety and recent near misses. The argument is affecting newer nurses. What should the manager do first? Assume the manager is reviewing Q1 FY2025 data covering 795 patient days, and no unrelated sentinel event is under investigation.