that's a lot of change in one fell swoop. every senior position changed other than Goody. That would unsettle me if i was Goody.
Bring in a new CEO. Let them assess the lie of the land and make changes as needed. New head of footy top of the list for sure.
The other problem, which perhaps can't be avoided if the change has to happen, is the upheaval will get in the way of making the changes needed in the assistant coaching team.