Why do people want Fiers over Harris? Fiers one relief appearance was absolutely terrible and Harris has been one of the best in the majors.
This isn't the time to experiment. I'm sure he's throwing on a fairly regular schedule to stay ready.
Who will come out of the pen for the 7th? If Hinch goes with what he has been doing this postseason, it will likely be Perez to face Moustakas or Sipp for the entire inning.