Firing Seitz would be pretty stupid. I think he's a decent hitting coach, was schooled by Charlie Lau, and is a link to Royals past when they were actually relevant. He had mixed results this year:
Butler .313, Perez .301, Gordon .294, Esky .293.
Not So Good:
Moose .242, Pena .236, Frenchy .235, Hosmer .232.
Those last two really hurt. Really really hurt.
Maybe that was enough to kick it.