Before the first nail is hammered, the PM must plan the work that his or her crew will actually do.
The PM looks over a proposed project to determine how and when the work will be performed, including prep work that must be completed before the building starts. The PM's cost estimate is important because it determines the price at which the PM's company will bid its services. The PM also develops a deliverables schedule to provide a road map that the construction team must stick to in order to finish the job in a timely and cost-effective manner (two other PM responsibilities). And the construction manager must review the project in depth in order to be prepared to handle tasks that come up along the way [sources: Exforsys, Hendrickson].