I can be talked into parting with Carpenter. His skill set is fairly narrow, and is not about to get substantially better. In fact, at age 28, it's all but certain to get worse. We might be able to trade the guy to a perennial second division team who could use his pop and aw shucks media demeanor as a way to goose interest in their flagging teams. I'm thinking Angels, Pirates, Nats, and especially Colorado. Might get a halfway decent under-utilized or close-to-big-league-ready asset in return, although not a numbered prospect. And trading Kerry does not necessarily leave us uncovered in right—between Jahmai, Wenceel, and Zach, plus now Vierling presumably coming back, we should be OK in right for another year, and most depth charts have Kerry at DH anyway. (This is all predicated on Harris not bringing in a RF asset from outside.)
The one thing I will push back on is the implication that Hinch actually likes extreme platoon splits. I can't imagine there is a manager alive who prefers a roster of platoon guys over a roster of as many regulars at as many positions as possible. It's just that Hinch is playing the hand of the imperfect roster he's been dealt, and he's very good at leaning into deploying their strengths judiciously, as opposed to trying to shoehorn eight big-platoon-split guys into everyday jobs they are ill-suited for.