Moon makes a valid point about the Sox defense.
If you give any credibility to FIP (and Porcello being unsigned doesn’t discredit it), the Sox starter ERA is 4.21, 7th in the AL. The starter FIP however is 3.91, a slightly more respectable 5th in the AL.
Davis and Robles have barely pitched, with each getting about 3 innings so far. But for both (Davis - 2.70 ERA, 1.66 FIP; Robles - 9.00 ERA, 0.83 FIP) the difference is already showing up.
Schwarber is definitely t going to solve the defensive woes of this team. He’s actually likely to contribute to them. (And Robles has at least had a few decent seasons; he’s not a horrible reliever.) But the only thing they did was maybe free up a potential pen like Houck to make a few more starts.
I suspect unless Richards makes a huge turnaround very soon, he could be DFAd to make room for Sale..