Strong is a good Head Coach. Texas was a horrible fit
The Texas Longhorns Head Coaching job is the kind of job needed for one of two types:
-The Mack Brown Type- Politician, glad-handing, loves the rubber-chicken circuit, keeps everybody happy.
-The Nick Saban Type- Total authoritarian, keeps the children (aka Boosters) in line. Don't forget that the Alabama football program was a dumpster fire before Nick Saban took over. You had "Birmingham factions" and "Texas factions". Basically, Saban came in and told them to shut up, follow him, or get the hell out.
Charlie Strong is neither. I could've told you from the day he was hired he wouldn't make it. If he had any hair, it would probably be falling out right now. He's an excellent football coach and a superb recruiter, but he's just not someone who wants to spend any time with the Boosters. If you want to see what kind of program he can build, see what he did at Louisville.
If, for some reason, Dan Mullen were to leave and Strong was available, I'd take him in a heartbeat.