He's not much of a fielder, either, but he's better than Dalbec-Cordero, and as a platoon, actually pretty decent.
I would not DH him. I don't think wasting 2 roster spots on a Dalbec-Cordero DH platoon should even be considered. Throw Arroyo into the mix at 1B and DH, and I still don't want 4 roster slots going to Hosmer, Dalbec, Cordero (who can try to play OF, too) and Arroyo (who can play other IF slots when healthy.)
I really like Casas, and do see a big need for him at 1B. BTW, he's currently not a great and maybe not even a good defensive 1Bman. Read between the normally rose-colored soxprospects.coms assessment of his defense:
Confident picking out throws in the dirt. Soft hands and surprisingly fluid actions. Moves well enough for first base. Potential solid-average defender there. Drafted as a third baseman, but footwork was choppy, he lacked range, and looked awkward fielding the ball there given his size.
I fully expect Casas to be our cost-controlled, capable 1Bman for the next few years. He won't be platooned, unless he proves to need it. We may go "light" at DH, or sign someone to play RF with Refsnyder, who can also DH. We may keep one from Dalbec and Cordero on the 26, but not both, and I think both still have options remaining. I think Arroyo has earned a 26 man slot, if healthy and maybe Enmanuel Valdez might bump Dalbec or Cordero off the 26.
Our need in CF is the clearest.
To me, 2B or SS is second among everyday player needs.
RF/DH might be third.
I think we may stay put at catcher.
1B is the last possible need area without Casas, but with him is not a n eed area at all. I would not sign a 1B/DH type. I'd sign a RF/DF type.