Lots of movement in the maintenance sector, a lot of people moved to new/other jobs so I am not sure whether it will be as smooth as you think.Understood. Most of the maintenance schedules are mandatory meaning they have to be done at specific times. And the aircrew will have spent ages keeping current in the Sims.
Restarting flight operations isn't going to happen immediately. It will be a very gradual buildup.
Also, the training in the sims has decreased significantly, so many pilots are just doing the bare minimum.