How bad is Tom Lemming?

This is kind of fun: break down the 2009 RB draft class by (Scout.com) star rankings out of high school. Some observations:

1) There were as many 2 stars as 5 stars drafted in the first round.

2) There were more 3 stars drafted than 4 stars.

3) In the later rounds (4-7), 2 stars dominated the draft boards.

This analysis is kind of painful to do, since it requires wading through the mounds of historical scout.com rankings, but it proves a point. Rankings are a pretty poor predictor of college performance. Would anyone trade Kevin Grady (5 star) for Donald Brown (scout 2 star) at this point?