All 12 of Alcantara's HR's have been LH, and hitting LH he's got a .912 OPS with .538 slugging. That is really good. RH he's hitting .228 with a .298 OBP and .318 slugging. So I think some platoon future should almost be expected, if he's going to become a starter rather than a utility player. The game tends to have quite a few RH-hitting middle infielders, so finding a platoon 2B who does well versus the occasional LH starter shouldn't be that hard. If Alcantara can become a good 120-start platoon 2B, partnered with a 40-start RH guy, that looks very reasonable to me. Alcantara has had his challenges defensively at SS. So I think getting him over primarily to 2B as soon as possible makes a lot of sense. Barney has been a terrific defender, but he's so limited offensively that we should be looking towards a replacement ASAP. Barney himself might be a good partner. he's been a .700+ OPS guy versus LHP. A guy like that who'd be OK as the minor platoon guy, and then available as a natural defender backing up SS would be a good roster fit. SS to 2B may be one of the easier switches, but the footwork on the DP for example is not easy. If Alcantara got moved over last week, and spends all of this season, all winter/camp, and all of next summer working at 2B, then by late next season he might be ready to play big-league defensive 2B. By next August, perhaps he could be ready for a serious call up as a platoon starter. I think it's a good plan. And hope that between Castro and Baez, one of them might be able to play an adequate SS long-term.