The window is fixed and the work is not
Everything about a turnaround follows from the fact that the time cannot be extended. The session starts when it starts. So the work is arranged as a priority order rather than a task list, and the crew works down it until they are told to stop. That produces a predictable outcome: the highest priority items are always done and the lowest are done when the window allows. Everything else about a turnaround follows from that single fixed constraint.
Setting that order is a client decision because it involves their judgement about what matters. Amenities and waste are almost always first, because they affect every attendee. Seating areas, floors and surfaces follow. Detail work is at the bottom and frequently does not happen, which is acceptable provided everybody knows that in advance rather than discovering it afterwards. Knowing in advance is what makes an incomplete list acceptable rather than a failure.
