Yep, the White Sox will be getting Leury and Avi back in short order, so that is two extra players that have to be accounted for somehow. Whatever is in Charlotte today PLUS probably Rondon and Thompson. I think Trayce probably is a DFA candidate at the very least. Alfredo Gonzalez could well be the person to move out of Charlotte behind the plate, as he brought nothing to the table, then again I haven't seen Garneau, but his numbers look pretty awful too.
I really think Saunders and Pressley are the two most likely OFs to go, plus I think you are right on Giovatella too.