14 assumes that it is perfect and everyone clears. But even in the major leagues (MLS, NBA, NHL) that didn't occur, particularly with travel-to-site, and I think assuming that 14 days clears everyone brought in without needing a second wave, or that all crew will be brought in at once for a single full wave is likely unrealistic.
For quarantine, everyone needs individual units and cannot be bunked until cleared. So I suspect the most likely operational approach is to staff up (via quarantine) the people required to support a quarantine (quarantined CMs need to-room food delivery and a full galley team, versus the 1-2 people on the idled ships). Then you do 1-3 waves of individual unit quarantine until you achieve the staffing required to support a ship at 50% capacity.
So look at the schedule like this:
- Bring in galley/cleaning staff that can be supported by the skeleton crew already in place through a 14-day quarantine.
- Move them into operations at day 15, minus anyone who doesn't clear, bring in next wave of CMs for quarantine at a higher volume since you now have galley/crew to support for 14 days (cleaning, food, delivery).
- Repeat for a third group to achieve crew level required. I'm assuming quarantine will largely be served in verandah units, because while later a sea-based quarantine may be moved to an inside, without passengers around why lock up your freshly arrived crew in the darkest units on ship?
- 2-4 weeks ship prep and training.
The skeleton crew likely cannot support quarantine for 250+ crew as currently staffed, so that is the first wave.