Final answer:
The projected headcount on a Production Log is typically filled in by a shift supervisor or a managerial role akin to a stage manager in a theatrical production, overseeing the process directly.
Step-by-step explanation:
The individual responsible for filling in the projected headcount on the Production Log would typically be a shift supervisor or someone in a managerial position directly overseeing the production process. This task generally falls under the purview of operational management rather than areas handled by positions such as the Executive Chef, Human Resources Manager, or Logistics Coordinator.
In a theatrical production context, while not directly analogous to the roles of technical director, costume shop manager, or master electrician, the shift supervisor or equivalent stage manager might handle the coordination of personnel as outlined by Hal Luftig's sports team analogy.