There's really no reason why Terry Smith can't run a program just as well as any of these other mid-level candidates, even if he hasn't moved through the ranks in quite the same way. Maybe not a name brand to national recruits, but he is already crucial to recruiting, and knows every HS coach. If there is a lot of internal support for him (at the Trustees level) that could be a big deal too.
Meanwhile Brent Key lost a game he shouldn't have (and to Pitt!), Jeff Brohm got blown out by SMU (and isn't really a candidate apparently) and Eli Drinkwitz lost the kind of game Franklin always did (to Oklahoma). Imagine if Rhule was still a candidate.
Reports that Bobby Engram is getting an interview.
It's so easy to get this kind of thing wrong even if you pick the seemingly right guy (Texas and Charlie Strong/Tom Herman, Michigan and Rich Rodriguez/Brady Hoke, Florida with everyone and arguably Florida State too). There are also examples of the interim coach working out great - Dabo Swinney, Ed Orgeron (for a while), Ryan Day. Brent Key. Dabo and Key had never been a coordinator either.