The fact that they added McKenna instead or Norby tells me this is a very short term thing. Still, I would have liked to have seen Norby be given his shot, but maybe they were worried he come up, hit, and then they'd still had to make room for Hays next week.
Not overly surprised that Holliday was optioned, only slightly surprised they didn't do it before the Angels series with the two lefty starters scheduled.