Last year Keith Law said that Buster Posey should be helping the Giants from Opening Day. When Posey finally made it, we found out why. But not all prospects are created equal, and Law goes through some top guys that still need refinement.
Jason Heyward was the No. 1-ranked major league prospect back in January, but a quarter of the way into the 2010 season, Keith Law has had to make changes. After all, Heyward is crushing the ball in the big leagues, so his prospect status is no more.