No way Darwinzon gets demoted. Sox sees him as able pitcher as long as he starts a clean inning so he can walk 2 batters and strike out 3.
Sawamura is very cheap, cost control guy for the Sox. Two years plus club option. I doubt he goes unless there's a good return.
Our cost for both Richards and Perez is their paychecks. We can trade them for PTBNL. Not sure if we get much for them other than taking on their salaries.