Little bit of both. The first page of this thread outlined some of Jackson's problems when he was drafted, such as whether he'd make good contact with wood, his high strikeout totals, his questionable power, whether he'll stay in center, etc. In the Cubs system, he put three of those problems to bed by hitting for good average, showcasing some impressive power in Peoria, and doing a very good job patrolling CF. He still strikes out enough to make people uncomfortable, but he cut down on that enough in the Cubs' system that he might be able to downplay it. Vitters, on the other hand, had more good news than bad news this season. The good news was his performance in Peoria, where he displayed excellent power and the ability to hit for a high average, especially over his hot month of May. The bad news was his performance in Daytona and his damned hand/wrist injuries. He seemed over-matched in Daytona, where pitchers could expose him with good pitches in the strike zone that Vitters would hit for easy outs. In the Top 10 discussion, all of us had Vitters over Jackson, so it's not like BA's list represents the consensus. Callis is just much higher on Jackson than most people, it seems.