The first step is to identify your weaknesses. I see quite a few of them here.
C 2B SP
Next identify your strengths with Depth:
OF/UTIL - Not Much
Your first move should be to dump aviles. You don't need a shortstop and he is taking a up a roster spot. Try to jump on the waiver wire for someone like Garner or Boesch.
Next try to work a deal...Catcher will be tough to get because there are so few and everyone overpaid for Mauer and will be disgruntle. 2B is a nice target...see if you can get Dan Uggla for Guiterrez. If not go for Cano and throw in Garcia with Guiterrez.