Isn't that always the way? You rate a couple of peoples teams and only get one response... Anyway.
Your hitting is great. I wouldn't touch any of it, except if I could trade an OF (not Vlad or Giles) for a SP. Kearns and Juan Gone are both injury prone but very talented. But even your bench is strong.
Your pitching is a little suspect. I like Mulder, though he's a bad pitcher away from Oakland. I've always thought that he'd be a great guy to platoon - even if most people would call him an ace. Brown is old and has spent considerable time on the DL lately. Beckett is great. Willis is a good #3. Weaver should rebound and Lieber could go either way. They're solid starters, though not spectacular. I'd try and trade either Mulder or Brown and an OF for a better SP.
Your relievers are good enough to keep you in the middle of the pack. Considering the rest of your team, that should keep you in the top 3.
(Or you could wait until a month into the season and then trade either an ss or a 2b for a SP. Whatever)