I agree with most of what you've written, but this part I disagree with... a lot of people think he'll at least an average-fielding third baseman. I very much do agree with the argument that the Cubs can't be trusted to develop a high school draftee, given their lack of success with Montanez, Harvey, Dopirak... going back to Corey Patterson actually. And, regardless of the Cubs ineptitude of developing position players, Vitters has a higher bust potential than a polished hitter like Wieters. That was last year... the guys is destroying the PCL this year, so there's a good chance that evaluations of him have changed.