BP Chat with Kevin Goldstein colavito (Memphis, TN): Starlin Castro becomes the top MLB preseason prospect at shortstop in a)2010, b)2011, c) both a and b, or d) none of the above? Kevin Goldstein: D. None of the above. I think he's becoming one of the more over-rated prospects in the game. Don't get me wrong, I really like him, he's an every day big league shortstop -- and a good one at that, but I don't see impact level at all. www.baseballprospectus.com