I thought he signed an extension with LSU?... Honestly Miles may be the best they can do this year but I don't think he will be much of a candidate.
At LSU they have a bevy of in-state talent, and the few players they bring in from out of state are generally local like Texas and Florida guys. I don't see scUM having a similar pattern in terms of who they bring in. Miles is another gambler too, and (IMO) not of the same caliber as Charlie. Some of his decision making this year was... strange to say the least.
Personally I think Marty Schottenheimer would be the best hire they could make - the guy is the epitome of what they are looking for. Sort of boring, but consistent and with a very solid NFL resume. I could just see him on the scUM sideline. To me, Miles seems like (if he goes there, and I don't think he does) someone who might make a flash but never really pan out.
As for the list:
Les Miles - Who the hell knows but clearly is/was scUM's number one target
Kirk Ferentz - Not interested
Greg Schiano? - Not interested, might be mutual
Brady Hoke? - Put his name out there, doubt it's mutual
Ron English - Apparently he is option E
Jim Tedford - scUM hopeful but there is no way this happens
Marty Schottenheimer - Saw it on RocksHouse... would be a good move but I doubt it happens