The guy is so arrogant, egotistical and delusional that he thought he was "spectacularly insulated" from getting the rug pulled out from under him. He obviously misread the fact that buyout money was just a phone call or two away. His public comments at season's end proved he had no clue what position he was in, or he was in total denial. Then he arrogantly refused to go along with the Kill hire, sealing his own fate.
While my first inclination was to think the administration deliberately timed it the way they did for effect, thinking about it now, whether they did or they didn't, my thought is if they really did he deserved every bit of it.
The guy has some serious psychological issues to sort out. Hopefully he'll do something about it someday. Thankfully that's going to be somebody else's problem.