so maybe Hinch should have sat Brieske and Holton and used Mize and Foley because the G's hadn't seen them recently? As good a theory as any.
I certainly believe it. If you look at Brieske or Holton, neither has the kind of top shelf stuff that would make you think on first sight that they could sustain the success they have been having unless they continued to get better themselves, exactly because once hitters see more of them, they are going to have to show better stuff to keep getting them out. OTOH, at the top tier, you do have the guys whose stuff is so good that the familiarity effect is going to be much smaller - Clase being the prime example, or maybe Aroldis Chapman in his heyday as well.