Out of utter frustration, I'd gladly let him go right now. He's shown that he isn't ready to run a big time program.
Too many times he's let his team come out flat. EVERY game this year, except this past weeks scrimmage vs. Tech.
Mistakes, turnovers, sloppy overall play. The drama in the locker room, whether it's on Hurd or not, is reflective of Butch.
I'm going to submit this and read the rest of your question, so I'll edit and add more.
Edit:
I'd let Hart be done asap and hire the new AD immediately. Then I'd make the change at head coach.
No, as dumb as my remarks are sometimes, I wouldn't let Hart even think about hiring the new coach. I'd let Hart fire Butch, then call Hart in the office and tell him to catch the flight outta town with Butch.
So, am I complaining just to complain? Maybe.
I refuse to pretend that Butch even looks like he's the man. The hiring and firing of all the coaches. The hiring of a completely out of touch OC. The constant spread offense with a big back(Hurd) when Kamara and Kelly sat. That is a red flag. Either he should've split more carries or adjusted his offense for the GUY THEY BROUGHT IN.
It's all evidence that Butch has no clue how big boy football is run.