SF has the 3d best ERA in MLB and the Sox scored 9 runs off them in the first two games--without Bregman and without Devers. Bregman is due back, maybe in early July, and he replaces Hammond in the lineup. That's a pretty big bump. As for Devers move to SF, I like your idea of Yoshida/Ref at DH or even Anthony, who looks like the real deal.
To me that's enough hitting, so I would prefer Breslow to focus on a starter or two. Pitching is our weakness, even with the recent spate of superbly pitched games.
I agree with you that absolutely nothing is guaranteed about our hitting, our pitching, or the season. But I'm a lot more hopeful than when the Sox were 30-35. A win tomorrow would be huge for this west coast trip.