It's a guilty pleasure of mine to say I've been a Rashad Evans fan since TUF. I'm feeling better and better about my inexplicable urge to like the guy.
He's got that athletic quality that is the ultimate basis to build off in MMA. Technique and skills can be taught, and he's still got a long way to go. But that natural athleticism, perseverence and pressure that he exudes every match means that the sky's the limit if he gets in with the right training camp, works his ass off, and really wants it.
Give him another year, maybe even two. You'll see constant progression in this guy's ability.