Out of the '4 for 2' of course, E-Rod is the only one who can be sent to Pawtucket. With Buch, Wright and Pom they have to be in the rotation, in the bullpen, on the DL or DFA'd. So if they all look OK in the spring, you'd rather stash one guy in AAA than DFA one guy. That's really the only point. If E-Rod looks great in spring I agree it's pretty unlikely they send him to AAA. The logjam may well be cleared by trading Buch anyway.