Wouldn't be surprised if romine will be the backup for him over the next three years, they trade murphy, let Sanchez develop for 3 years in the minors, after 3 years move Mccann to first, let Sanchez catch.
cervelli is probably going to be his "platoon" partner. Hes a career (although only 200 PA) .305 .402 .389 .791 against southpaws. Also a good way to allow mccann to stay behind the plate longer if he is given some more rest.