It's got potential. Right now your OF needs serious work and you took some gambles with your SP. Floyd may be done due to kidney problems, Guillen is out for quite a while and Corey Patterson doesn't deserve a roster spot yet. Pierre should do well, but Brian Giles is going to put up pedestrian numbers in Petco.
As far as your SPs...Liriano hasn't locked down a spot in Minnesota's rotation, Prior is out indefinitely with shoulder problems, and Sheets may be out. I'd try to deal Nomar for an OF, but that's just me.