I have a theory... and it goes like this.
When you succeed you don't want to change things you are doing. CBJ and Bajakian have had success where they have been. But when you do the same thing over and over, defensive minds will adapt to it eventually.
I'm not saying the system is flawed, I'm saying the system has run it's course and we need to try something new.
The first season at Central Michigan, they were rocking. New system, new everything. Defenses didn't really know what was up.
They get to Cincy and do the same thing and probably tweak some things in the playbook. They got better talent so things are running smooth.
Come to TN and the talent is off the charts but you have better opponents who will scheme better against you.
I don't know of any coach who has stuck with the same OC for more years than Butch has. I'm sure there are some, but I don't know of any personally.
Tons of tapes of games to look at. We can watch every game from Central Michigan, Cincy, to now and get a feel of what plays there are and the tendencies.
I hope I'm wrong and our OC has tweaked or changed plays every season but if not, I fear we have already become predictable.
You might not have to change staff, but changing philosophies might be needed in THE FUTURE.