Didn't read the whole thread, but was pleased with the first page where most comments say something similar to--"well, that's baseball."
Certainly I blame the starters. But they weren't too shabby last year and in fact have had good years in the past. So I'm inclined to blame the pitching coach even though I recognize there is only so much he can do.
Last night was another specific reminder of how Sox starters are different, at least in my eyes. They don't work the corners well, especially at the bottom of the zone, and this exacerbates the fact that three of them--Sale, Price, and ERod--don't have a curve ball, so they rely on fast balls and cut fast balls. ERod has the best changeup, but not that good command. The quintessential ERod first inning is the one we saw vs the Yankees this weekend when he walked I think two guys, gave up the grand slam, and them pitched a very solid 6 innings. Sale and Price, astoundingly, do not have great changeups even though face tons of righty bats. Sale has a darn good slider, but can't always hit his spots, especially down low, plus it breaks in on righty hitters.
The bullpen for the most part does not have great stuff or great command. Lately, they seem intimidated by just going to the mound.
I see nothing to fix in the hitting. When opposing pitchers prevail, it's usually because they are pitching well--hitting spots, good movement, etc.