Term. Blameless post-mortem — reviewing a failure for the lesson, not for punishment.
Case. After every fight a couple hunts for the guilty, and the review becomes a new fight.
How it should go. The question isn’t “who’s to blame” but “what was the signal and what will we do differently”. Each names their own part without blaming the other.
Lesson. Hunting for the guilty kills the point of the review; the goal is improvement, not a verdict.
See High availability.