On a call, the client's finance lead says "twelve months is fine for the first release". Everyone nods.
Your consultant writes a recap email. The client doesn't reply. Silence feels like agreement.
The model is built on twelve months. Three people spend a week on it.
At UAT a new stakeholder asks why it isn't six months. "We never agreed to twelve." Nobody can show who agreed, in what words.
Your firm rebuilds it for free to keep the relationship. The margin on the project is gone, and nobody records why.
