I would say UF should be looking at nothing but the two or three hottest head coaches that are not at destination jobs, but Muschamp should have never been considered the first go around, so maybe Mullen will be on the short list this time. The argument for Mullen is that he has proven he can be a head coach in the SEC and that he is extremely good at avoiding losses to infrerior teams. He can also identify talent. His one knock, that he can't pull the upset, will be negated in part by the fact that at UF he can have equal talent to anybody else. He will also have the budget to keep good DC's, only losing them to head coaching jobs. The biggest downside is that Mullen is already a top 25 paid coach, so Foley will have to pay him big time to get him to jump to a situation with worst personnel (weird that you can say that, but the qb hole is glaring at UF versus being stocked at MSU) and less patient fans.
Now that I think about it, I would definitely have Mullen on the short list if I were Foley. I'd want to hire the hottest name to calm the fans, but if I couldn't make that happen, I'd feel fairly confident that if I could get through one tough transition season, that Mullen would be on a path to make both our jobs secure.