I think it was eight weeks ago they said this:
Airservices employs more than 900 ATCs, 97 per cent of which are in operational roles. Airservices only requires about 800 ATCs to fully staff the ATC network,” said a spokesperson for Airservices in a statement.
Sounds like they have about 100 spare controllers, I think the minister should ask them to call them in for some compulsory overtime.