Yes, you should pick up Pedro Alvarez. He's shown some signs of turning things around. Drop either Madison Bumgarner or Joe Nathan (I assume Johnny Cueto is on your DL), but only because Brennan Boesch is hitting just about everything he sees right now.
I like your thought process here. Having a high-upside third baseman like Alvarez on your bench is quite a luxury.
Mike Schmidt
DobberBaseball Writer