The interim status will hold through the end of the year and then they'll re-evaluate. Chad Tracey will probably keep the manager's title and he'll get to pick his own staff.
The Tek part was obvious from IG.
The firing was clearly decided prior as it would have taken longer to charter the private jet they had prepped for Cora and Co.
McAdam just sourced all of this info from other places but wont give credit.