In addition to everyone you mentioned- Loperfido, Berroa, Clase, Wagner, Barger and Clement- we also have:
Leo Jimenez, Schneider and Orelvis on the 40 man
Roden and Kasevich aren't on the 40-man but are close to ready
Lukes (40 man) and Stefanic (ST invite) are interesting older guys
Some of these guys overlap a lot and I think it could be beneficial to trade them. We need more depth arms and another surefire bat. We might need some international money as well.
Atkins usually knows what prospects he can move that won't come back to bite him.