Coordinating all the complex behind-the-scenes details of staging a play is the task of the production manager. He or she is tasked with overseeing the crews for the sets and props, the sound and music, the lighting, and the costumes. This includes ensuring that all the needed elements, facilities, and equipment are not only available, but are in good working order, properly catalogued and labelled, and safely stored from one rehearsal to the next, up until the time of the performance