OK. let's look at the pitching:
SP (2): Harden, Lee.
RP (2): Ryan, Cordero
UP (3): Colon, Reitsma, Harang / Politte.
Getting back to what Redsnake said,
Look for: Farnsworth, D.Sanchez, Baez, Looper, Timlin, R.Soriano, Linebrink. These guys might even give you saves and more trade bait.
do you have any one of the players he listed on the waiver wire? If so, drop Barrett and pick one of them up. Also, is F. Liriano (MIN) available?