What kind of a coach is going to want to go somewhere where:
A. You're replacing a guy who has won two NC's.
B. Said coach could decide to come back as the HC at any moment, and then you're gone.
C. Said coach is looking over your shoulder all the time.
I do agree with you that Foley is looking for a replacemnt for Meyer, but if he were to even get a guy half the caliber of Dan Mullen, he would be exrtemely lucky, because I don't think very many coaches are going to want to go to Florida under those three conditions I just said above. And I haven't even talked about the fact that they are going to lose Tebow and no telling how many of their players that will go to the NFL by coming out early. And even though they will throw a ton of money at a potential replacement, why would a coach do that, knowing that they could go to some other big name school like Georgia and not have to worry about the rest of this crap.
I think what they will have to do is either:
A. Promote Dan McCarney as an interim coach, which I think is the most likely scenario here given the events of today.
B. Hire a retread who is looking to get "back in the game". Someone like a Mike Shanahan, who has ties to UF.
And if I were a Florida fan, neither of those options looks really great. And if/when Meyer comes back, who knows when this may happen again? It's a heart condition, it's not like he has TB or something that is going to go away.
I think Foley needs to tell Meyer to resign. I can't see letting him hang around being good for their program.