If Casey were willing to stay in MKE for a small salary (unlikely) then keeping him, despite the defense, is a good idea. But since he's unlikely to accept a relatively small base-salary, and his contract expires in the near-future, it's unrealistic to assume that he'll last beyond his contract... Unless, of course, he can be signed for beneath his value (which, again, is highly-improbable). We have control of McGehee through the end of the 2014 season at shich time he will be a free agent. He is barely above average as a hitter and a poor defender. He isn't a bad guy to hold onto. It would make almost zero sense to give him a long term contract. He will be 32 his first year of free agency. In other words on the decline. So you go year to year. You don't want to buy out any free agent years like you would with other young players.