Topic summary
Stage manager

Extracted from the Wikipedia article Stage management.
United States
In the United States, stage manager is a generic title that may be applied to anyone who performs stage management functions. On small shows, one person typically performs all the tasks of stage management, and is simply referred to as the stage manager. Larger shows often need two or more stage managers. In such cases the head stage manager is titled production stage manager (commonly abbreviated PSM), and working under the PSM is one or more assistant stage managers (commonly abbreviated ASM). Shows that employ three stage managers have a PSM and two ASMs, though the program credits may list them as production stage manager (first or head stage manager), stage manager (second stage manager), and assistant stage manager (third stage manager).