Does he still have the fire? Yes
Does he still have the energy? Don't know
Has he kept up with changes in how the game is played? Yes
Is he willing to adapt? Yes
Will he recruit well enough? Yes
Will he recruit too well and hurt UTK? No
66 is an age, when coaches usually retire, not get back into the game. Perhaps he would be better suited as an AD/assistant coach for the Mocs.
Perhaps he would be better off as an OL Coach/Assistant Head Coach for UTK. CBJ could really benefit from having someone on his staff with better game day experience.
We really need someone to teach the OL how to "Block like Heck!"