Hi, Mike!
But of course one has to assume that all project team members have been properly instructed on the right way to deal with potential schedule improvements:
1. Take the suggestion to the planner (ECP, or engineering change proposal);
2. Have its overall implications analyzed;
3. Implement the work and schedule change (ECO, or engineering change order).
If the team has NOT been properly instructed, then the project manager has been guilty of a grievous omission and should:
1. Shoot himself;
2. Bury himself.
In that order, of course.
Go, England! (Does the weather ever do anything but rain? In Barbados, we'd never allow that during an important cricket match!)
Fraternally in project management,
Steve the Bajan