It really shouldn't have to do with expectations, though. I know why it does.
Right now, JD is slightly below Devers and Bogey in OPS, but it's been in flux, all year. With OBP counting more than SLG, Bogey has been our best hitter, but not by a whole lot.
TB/PA
292/624 Devers .468
281/600 JD (even with Devers per PA) .468
256/564 Bogey (close) .454
244/535 Renfroe (close and better than Bogey).456