I'd actually take Ward off that list, since he's a bit of an issue right now. He's hadly even a lock for the 40 man roster in December.
Groome, Potts, and Rosario are probably the headliners on the 40 man roster, with Chavis and Arauz available to anyone interested. If he does actually deal a promising prospect, a situation I agree is unlikely, I will nominate Gilberto Jimenez as my candidate..