Just like Castellanos was the clear better hitter/player than everyone else, right? I think it's far from a certainty based on Martinez's age and his subpar play over the last couple months. And, as also stated above, he's got no value whatsoever on defense as he's limited strictly to DH. That matters a lot to a team like the Brewers that already has McCutchen and likes to rotate its other position players at DH....