Casey McGehee's emergence can be traced back to hitting adjustments he made in 2008 - ESPN:
"Even if you think you have a player figured out, they can still change things and make themselves a different player. That's what McGehee did, and why I should have changed my opinion on him. He's legit, and should continue to be. And I should have seen it sooner"
But would you trade for him if the other team was asking 5th round value?