Well you have a few guys struggling there. Whats the size (teams) of this league.
I think your offense is solid. Delgado will be fine, and the only player I don't like is Tracy, but thats an opinion thing. You seem to have a lot of speed on your bench, and thats always in demand. I think your offense will iron itself out.
I'm not a fan of Milwood or Meche. Make grabbing some good MRP will help. Again, Zambrano will be fine.
You could ride your relievers for a while, then package one of them of. I wouldn't panic yet though.
Assuming this is a 12+ team league, your okay.