SBNation has an article on possible Tennessee coaches. Some are pipe dreams; others could be legitimate. They're listed by categories:
MAKE THEM SAY NO
Gregg Marshall, Wichita
Shaka Smart, VCU
CURRENTLY OUT OF COLLEGE BALL
Lawrence Frank, formerly coach of the Nets and Pistons. An assistant at Brooklyn but hasn't been on the bench since December. Formerly an asst. at Tennessee
Ben Howland, formerly at UCLA. (His name always comes up but, after that blistering SI article on him, I wouldn't touch him)
MAJOR CONFERENCE
Tad Boyle, Colorado- was Dir. of Basketball Operations at Tennessee in 1997-98
Chris Mack, Xavier
Tim Miles, Nebraska
MID-MAJOR
Archie Miller, Dayton
Donnie Tyndell, So. Miss- also had success at Morehead St, including an NCAA win over Louisville
Michael White- La.Tech
CLOSE TO HOME
Rick Byrd, Belmont- been there since 1986 but his age, 60, probably disqualifies him
Will Wade, Chattanooga