The Green Bay Packers have certainly disappointed this year, but this is a surprisingly ruthless firing. At the very least, one would have expected Green Bay to let a Super Bowl-winning coach finish the season.
The Green Bay Packers have parted ways with Head Coach Mike McCarthy & named Joe Philbin interim head coach.
— Green Bay Packers (@packers) December 3, 2018
The best guess is that everyone wants the next Sean McVay and the supply is limited. By pulling the trigger so quickly, Green Bay will have first crack at whoever the next offensive genius is supposed to be.