I was lucky to find this excellent post on the Orioles Think Tank related to Corey Patterson. The author runs some comps for Patterson's profile and the results are not very encouraging. Corey has cut his strikeout rate this year (9 in 58 AB) but continues to treat a walk as a personal affront (he has exactly 1). The author makes the point that almost the only way someone with Patterson's profile has been able to log as many plate appearances as he has is that he has other skills (defense and base running and a little pop in his bat) that add to his value. Even so, he's still not league average and so the long and short of it is that unless he finds a way to boost his offensive performance, he'll be driven out of the league sooner rather than later.