There has to be more to the story that the public doesn't know about.
When top leaders start exiting the program, it's usually because they see something down the highway that they want to avoid. When there are clashes with others, power, politics or whatever, these types of people usually stay and fight. So while there may be power struggles going on, I don't see that as a reason to exit.
Usually there is something else coming, or something has happened and they want to remove themselves from a situation that hasn't been made public.
Directly or indirectly, money is probably involved as well. The stadium renovation has a massive price tag to it.. and is likely central to whatever is actually going on.
Definitely not good timing for the athletic programs, but Trev is replaceable.. the only problem is, you have about a 50-50 shot of getting it right or screwing it up.. There are always a bunch of Steve Pedersons and Sean Eichorsts that can damage a program.
If more shoes start to drop, then I start to become a lot more concerned that someone has shouted Fire in the theater.