I agree with trading Chavez. Put Chavez and one of your closers like Nathan, Biddle, Koch, or Graves in together and ask for starting pitchers in the range of Vazquez(no one is going to trade him right now), Mussina, Hudson, Schmidt, Zito, Mulder, or Oswalt
Not to bash your league, but it has some real qwirks. Two Catchers? BB instead of Runs? You may want to join a basic 5x5 to get exposure to how most leagues are set up.