My "whole point" was that many Sox hitters have been under-performing, but it doesn't seem like Yankee fans expect them to turn things around.
Just Yankees are allowed to rebound, I guess.
Last year, when I made the point that Vazquez was the only returning Sox player to not decline (or "underperform") I was met with the argument that maybe the 2017 Red Sox batter where who they really were, and that their previous year or two or three sample sizes or career norm my have been the true outlier. I never bought that idea.
Of course, one should expect a few players to do better and a few to do worse and a few more to do about the same from year to year and even within any given season. I get that. There's certainly a good chance a few Sox will finish much below their career norms. I'm not arguing that every Sox player will be at or above their recent or career norm, although it might do some justice for 2017, but my point was that we certainly could see our 7-9 hitters, combined, doing a hundred or more points better over the rest of the season.
That could make up for a possible 100 point drop from our three best hitters who appear to be too far above their norms.
I expect Yankee players to do about the same-- to the good and to the bad.