Back in the days of full live staffing, it was not uncommon for the "new" airstaff to be waiting in a hotel and ready to be called in when the "old" airstaff was fired and out of the building.
I know someone who was in on one of these. The old staff refused to leave the building, which made things....err.....awkward.
They had to wait in the hotel for hours while the old staff's departure was negotiated.