Starting this out by stating that I definitely expect Priester to come in following 1-2 innings of Ashby tonight...
However, I don't doubt that Murphy has an option in his back pocket that has Miz coming into this game instead of Priester - and saving Priester for Game 3 in Wrigley. I can see a scenario where the Brewers find a way to get a couple run lead early again, then Murphy tries to get 3-4 innings from Miz before letting the likes of Uribe, Koenig, Megill and company try to lock down a 2-0 series lead. That'd be a bit reckless...but IF Miz is going to play any sort of significant role on this pitching staff, IMO at home is the best way to try and use him (buffered by the bullpen on both sides, giving him the opportunity to roll through a lineup 1-2 times if he shows he's on - otherwise you get him out quickly).