The last two spots in Pittsburgh's pen are up in the air. Presumably, whoever is the loser of the Locke/Worley competition for the fifth starter job will be sent to the pen as the long reliever, leading to the last two spots being up for grabs among Radhames Liz, Stolmy Pimentel, Balester, and about three other guys. I'm guessing Bally still has options, in which case, he probably gets sent to AAA despite Pimentel's struggles last season because Pimentel is out of options. Bally probably is the superior pitcher to Pimentel though.