I'm no expert either but I believe this isn't particularly fast paced for a college hitter out of bigger conference like Colvin was. But it is still pretty impressive for someone as raw as he is in his first full pro season. He has glaring weaknesses, but as RHIAB points out, he's more likely to fix his plate discipline issues after he's tested at higher levels. Perhaps that could be an interesting side effect, but in an organization so devoid of any real concentration on patience, I doubt that's the motivation. I find this really odd considering he's not even dominating his current league. It would be one thing if he was hitting .380 or something ridiculous and knocking HRs left and right, making it unrealistic for him to try and be patient. But he's barely hitting .300, ranking 13th in the league, and is just 12th in OPS. He's still just 21. Pushing him to AA this early, with just about 500 professional at bats, having already skipped low A (after starting in short season ball), seems incredibly aggressive. You'd have to think they believe he's worthy of a 2008 call-up if he's going to AA now.