How Estimation Deviation Reveals Hidden Problems

Estimation Deviation is the gap between estimated time and actual implementation time. A single miss is normal, but systemic misses prove something is being hidden or complexity has made the system unpredictable. If a two-week estimate consistently takes two months, the system is the problem, not the estimator.

The negotiation should use objective data, not authority. The CTO presents the cost of a fast implementation versus the disciplined path. The CEO decides if the feature is worth the total price. The CEO hired experts to tell him what to do, not for him to tell them what to do. Submissive managers who only say yes are a liability.