On Monday, a feature moves to In Progress.

By Tuesday, the repository has a new module, a database migration, and a set of endpoints. On Wednesday, the first pull request is open. By Friday, the happy path works in a demo.

The work looks healthy. The board is moving. Code is accumulating.

But the team still has not agreed on what should happen when a request is repeated, a dependency times out, an event arrives out of order, or a user changes state halfway through the operation.

That is not a small planning gap. It means implementation began before the product's behaviour was defined.