Forecast Diagnostic Investigate a forecast that missed, or that nobody trusts, and name the root cause with evidence. A forecast call asks "what's the number?" This diagnostic asks "was the number ever real?" Practitioners converge on the view that most misses are inspection failures, not market failures: the evidence that a committed deal was fiction usually existed in the record before the miss. Scope boundary, stated up front: this skill consumes whatever forecasting methodology already exists - the category set, roll-up rules, commit criteria, and coverage targets are inputs, not delivera…