I think they can deal Sandoval considering all their offseason acquisitions. I'd do it for a low level DSL prospect as a straight salary dump. I think that's not a "them being cheap" move, but a move to give them flexibility to complete their roster now and at the deadline since they are stuck with Masa and Hicks.
I think they would like to deal Duran, but haven't found someone to meet their asking price. BOS is probably better off with Duran or just dealing him for prospects.