If Davies is truly 100% healthy, I'd take the 2017 version of Zach Davies over anyone currently in the Brewers' rotation. We're talking about a nearly 3 WAR starting pitcher who won 17 games with a 3.9 ERA last year. I don't agree how you put this, but agree with your general point. Davies on top of his game would be a big addition to the rotation. But is that the Davies we would be getting? And we're headed into September, so no time for experiments. That said, I think you need to take risks to get over the top, especially a team like the Brewers. Maybe let him start, and if he just doesn't have it be prepared for Miley or Peralta to take over early. Here's a nice list of ifs for you. If it's the good Davies, if Anderson can keep a few more balls in the park, and if we see more of the untouchable Peralta the rotation looks much better. Chacin and Guerra are pretty much known quantities. Chacin has pitched well all year, and Guerra will generally keep you in games. I would roll with Anderson, Chacin, Davies, Guerra, Peralta and use Miley in the pen, as they could really use a lefty there. You can always put Miley back in the rotation if someone is injured or awful. Somewhat limited sample size, but Miley has been the best of the bunch this year. Why would he go to the pen given his production as a starter? Besides, Peralta is coming up on what likely will be his innings cap for the year (130.1IP this year, 120IP last year).