I think most would put money on Dozier being better in 2017. That's fine given that it won't likely be a good season. I agree with your assessment on Polanco. He could be a bit better defensively (though he makes some stupid errors from time to time), and offensively, he's going to be more of an OBP/doubles/10-15 HR guy at his peak. That's a good player at 2nd, and different than BD in so many ways, but given that the team has plenty of HR threats in Sano, Vargas, Palka, Walker, and Park, I don't think that they will have problems finding a combo that generates runs in the future. They do however, need to put guys in front of them who can get on base.