There has been a lot of chatter, mostly by people at UT and some media members about unhappiness within coaching staff that lead to a failure of 2016. Here are few things that are being said by some reporters and people at UT. (No insider information here. Just compilation of stuff from Podcasts, informal talks with local media members and UTK students who claim to have heard similar rumblings)
a) Butch is reportedly very unhappy with the lack of AD situation. He has been telling people it has been hurting recruiting and OC hire. The internal promotion is not by choice for Butch, rather outsider big candidates' unwillingness to join the staff without some assurance from AD on stability. Butch has been telling local media members during informal communications to look at staff other SEC teams have assembled. His situation is like he is almost taking a knife to a gun fight against Alabama, comparing the supporting staff.
b) Shoop never fully got support from Martinez, Thigpen or Stripling. The three reportedly felt like Shoop undermined their authority with micromanaging things. Things got worse as the season progressed. Stripling will retire, Martinez will be let go. Thigpen might look elsewhere but Shoop and Butch have tried to convince him to stay due to his recruiting powers.
c) After season Butch did look for other options as he was uncertain about his status once new AD was hired. UT higher-ups assured him that he won't be let go upon hire of new AD.
d) Don Mahoney will be let go after signing day. Azzanni is looking elsewhere and will leave after signing day. Larry Scott will be new OC. Butch has tried to do a CO-OC thing with both but Azzanni wants full control of the offense. Funny as Butch wanted to bring a name but he couldn't land one.
e) The media reports of Butch not willing to relinquish control of offense are wrong.
Why are most of your post speculative, with B.S. rumors,
that have been regurgitated from sources that have their own agenda, and all have the same undertone of I want Butch gone. I personally find them childish.