I believe Barnhart will force Tubby to make a LOT of changes with his coaching staff. And I believe it's a good tactic on the AD's part because:
1- It can help avoid the PR nightmare that coaches and writers are predicting if Tubby were to be let go. Of course, we should ignore the PR and do what's right for the team, but these days people are concerned about how something looks.
2- If wholesale changes in his staff turns the team around, everybody's happy.
3- If wholesale changes do NOT work, Barnhart can say that UK gave Tubby every chance to improve but it's now evident that other changes are necessary to turn the program around.
I'd be content to see Tubby go after this year, especially if they lose in the first round. I'd also be perfectly happy to see Tubby remain as coach IF he can get this program back to where it was when he took over the reins. If Tubby can win here, he's welcome for as long as he wants to stay as far as I'm concerned. He just hasn't inspired much confidence over the past several years.