I disagree with hooligan. You've got four closers, although three of them are on thin ice. I think Borowski is the most likely of those three to hang onto the job. You might consider packaging Wickman and Batista for a closer upgrade (try for Mike Adams, maybe?), but right now you've got enough saves.
I like your pitching, even if Prior craps out again. I'd be careful starting him until we know he's healthy.
Your OF is deep, but you don't really have a #1 guy. Patterson or Bay could creep into that realm. Hunter is a good guy to have if you are looking to balance out a power hitting team, but you might need more power then he'll provide. I do like Mench, and would keep him.
I think you need some offense. Didn't Sanders just get injured? I'm not sure how serious it is, but that probably isn't the last time someone on your squad will get hurt. Consider dropping Wolf for another bat, or trading Wolf + Hunter for an offensive upgrade.
Comments on my squad?
"The game has a cleanness. If you do a good job, the numbers say so. You don't have to ask anyone or play politics. You don't have to wait for the reviews." - Sandy Koufax