I'm torn on Montgomery, and admittedly haven't thought about him since Rea. On the one hand, he seems like one of the most obvious bounce-back candidates in the league. The number of guys who have signed late, ate crap for a season, and then resumed their careers like. nothing happened is fairly lengthy. And with Montgomery especially, it's easy to draw a line from abbreviated spring training -> not at 100% physically -> velo drop -> poor performance. If Montgomery is throwing 93+ a few starts into the season it's pretty easy to say he's back.
On the other hand, particularly after Rea I don't know that I want to burn yet more roster spots on projects. If Ben Brown or Cade Horton are striking out 35% of the batters they're facing at Iowa, and all of the Cubs' back end veteran types are pitching adequately, how many bullets do we have to sit around watching get wasted in Des Moine?
Ultimately I guess I'd chalk it up to cost. If AZ eats enough salary that Jed can acquire Montgomery without having to skimp on the bench and bullpen options he wants, I'm probably up for it. If Montgomery though is the difference between Kirby Yates + Mark Canha vs. Paul Sewald + Conor Joe I'm going to have a fit.