"Expert judgment degrades when it is removed from consequences.
In a rollback decision with incomplete telemetry, you can feel two risks at once: acting too early and acting too late. The team needs a boundary more than it needs reassurance.
When the boundary is unwritten, people optimize for what is legible and defensible, not for what is true. That is how you get busywork and brittle systems. Name what you are refusing to optimize, so future changes do not quietly destroy the property you thought you were protecting. Clarity is not certainty; it is a small commitment the team can execute without reopening the decision at every update.
Write the stop condition before momentum turns into denial. That is how you turn stress into clarity instead of theater. Stop while it is still simple.