They won’t want the union militants standing them up in 5 years time clashing over below industry pay. Which is why they will probably trade up from the Saab and further boost its cadet scheme. So I don’t expect them to fully crew it in the medium to long term with union members from Tiger or Virgin.
For a new startup everyone hired for the launch to get the regulator approvals is usually gone by the third or fourth year anyway.
It will be interesting to see if they take back past employees.