War-game an on-call schedule rewrite by proving each coverage grid has a named owner, a measured age-out, and a reverse path before draft grids start governing every on-call claim.
On-call schedule rewrites fail when "covered" means a status without a decision artifact, when teams dual-count a draft grid as both approved and live, and when high-risk service lines still pin to one thin scheduler because the grid inventory is incomplete. The review needs one written inventory of coverage grids, one owner who can deny a risky shortcut, and a documented consequence when a failed grid ages past the deadline.
Freeze the rewrite scope
State which service lines the rewrite covers, the effective date, which schedule grids change, how versions are stored, and what happens to shifts already in flight. Name the specialties that feel it first and the coverage promises that depend on coherent on-call handling. If the memo mixes an on-call schedule rewrite with a privileging renewal SLA and a block time release rule, split them.
Write the decision you will make if the war game finds nothing new. Also write the reverse criteria: the missed grid, coverage gap, or patient deadline that would force a rewrite rollback within a stated window.
Stress seats for the rewrite
- A high-acuity service line stays soft while the aggregate on-call dashboard stays green.
- Two teams claim the same grid ownership and neither can force a freeze at week end.
- A restore has already left a shift without a trusted coverage state.
- The primary on-call export lags beyond the planned observation window.
- An operator skips a rewrite gate because a roster cutoff is near.
For each stress seat, require detection time, coverage impact, containment, and the authority to force a rewrite rollback. Commands and export links belong in the runbook, not in a verbal promise that paging will catch it.
Pass the rewrite through opposing seats
Feed Pingpong the rewrite memo, the grid exhibits, and seating briefs for medical staff ops, OR ops, nursing, and clinic. First pass steelmans the rewrite. Later passes attack from those seats. Final pass turns surviving objections into phased grid rules, mitigations, or a changed recommendation. Agreement across passes is not proof. Keep the objections that still have evidence gaps.
Pair with the medical staff ops lead seat, the OR ops lead seat, a block time release rule, and an on-call rotation change stress test. More operating decisions live in the war-game decisions hub.
Ship the rewrite only when approved and blocked grid labels can be reproduced from stored on-call exports without a verbal override.