You and I know that the schedule is an estimate, a guess if you will. The project schedule is your best guess about when the project team will reach which milestones and when the project may complete. A schedule is not a prediction; it is a guess. But some project managers have sponsors who want that guess to be a commitment (see Figure 21, Schedule Equals Commitment).
If you are facing the commitment problem, ask these two questions:
Do you care what the project team delivers?
Do you care how good the product is?
A reasonable schedule discussion requires discussing the ...