Hosmer would be a significant upgrade over Travis.
Interesting that this was the take away from my post. My preference would be to sign Martinez and Otani. Hosmer is brought up because he plays 1st base, he's one of the best hitters on the market, and he plays a position the Sox have a hole at and could use an upgrade when they desparetely need an upgrade on the offense.
Can this move be criticized? absolutely, but to those throwing stones, let us hear your plans to upgrade this team?
In terms of where Martinez plays, I wouldn't be opposed to giving him a 1B glove, depending on how far down the rabbit hole we want to go I wouldn't oppose seeing him in LF and using Benintendi as part of a package to upgrade another position. I'd also be fine with him being a 4thoufielder/DH hybrid, he could upgrade the offense, fill in youngs role and open up a roster spot for one more out of the Marrero/Hernandez/Holt/Lin clan which will go a long way with Pedey's situation up in the air.