When Vince was at UT, Mack and the coaching staff originally tried to get him to work within the system. Vince kept doing it his way. They finally "let Vince be Vince" and that's when he became one of the best college QBs ever, maybe the best. That's one thing that everyone who hollers "Fuck Mack Brown" needs to remember. Brown saw Young's unique talents, and instead of forcing Young into a system, he was man enough to subdue his ego and let Young perform. There are a lot of college coaches that would have benched Young when he went off script.
Then he gets drafted by the Titans and has the walking anus known as Jeff Fisher for a coach. Jeff Fisher was by GOD going to force Young into his system. When Young did it his way, Fisher didn't bench him, he stabbed him in the back, time after time. We're talking about Fisher, the guy who locked his Super Bowl quarterback out of the team facilities, so making up some bullshit story and calling the cops saying he was worried Young was suicidal was just another tactic.
Young was like Michael Vick and several other qbs, in that they were not going to be successful as traditional quarterbacks. The system had to be flexible enough to accommodate their unique skill sets. Young did try to work with several other teams, but his ego had been shattered, his conditioning wasn't as good, and he was trying to fit into systems as a backup.
If Young had originally had a head coach in the pros that would have worked with him, he would have had a successful pro career. It wouldn't have been a long one, because his playing style makes him take more hits than the average QB, but his ceiling was a lot higher than what he showed.
And yeah, that championship game may have been the best game ever played by a QB.