I still think I'd prefer Miz starting tomorrow night over anyone else....but if there's hesitancy at all with how he'd react at this point to getting the start, I think I'd want any secondary option starting the game to be a righty (Patrick, Anderson, Megill, even Uribe) - for the sole reason to have Busch penciled in at the leadoff spot and not just on the bench waiting to pinch hit at the most opportune time later in the game. I don't like the idea of Quintana starting on 2 days rest and facing Turner/Hoerner/Tucker/Suzuki/Righty Happ - then having Busch to slot in later in the game against a righty with runners on base. Priester also threw too many pitches Wednesday for me to want him starting this game - I think the layoff/bye impacted how rusty he came out Wednesday, and getting nothing from him completely altered this series. It was a very well thought out plan from Murphy (not referring at all to the lineup shenanigans, just the pitching plan), and Priester simply crapped the bed. That sucks, because he was such a huge part of why the Brewers got to the point they're at.
It's also worth noting that the Cubs have done all their HR damage off low-mid 90s fastballs this series, the lone exception being Suzuki's HR of Ashby on a chest-high 92 mph changeup that missed its location by at least a foot and a half. Brewer starters have really struggled locating their secondary pitches, and even though the Cubs do struggle with high velocity, if they know they can largely spit on anything offspeed against pitchers who don't have 98 in the tank they are gearing up to do damage against the "decent" 92-95 mph heat. I think Patrick has pitched well this series in large part because his four seamer has been sitting 96-98 and he's been able to command his cutter and throw strikes with it. Miz got on a decent roll because he was able to reasonably command his low 90s slider/cutter in the zone and get called strikes on it on top of overwhelming most of the hitters with triple digit four seamers/sinkers. Freddy used his changeup effectively in game 1 off 95+mph heat after he served up the gopher ball to Busch - last night he struggled to throw it for strikes and labored having to rely too much on his fastball.
None of this matters at all if the Brewers can't hit...but I think this game swings one way or the other significantly early depending how the first Brewer to take the hill fares against the top of the order.