Being as kind to Chris Flexen as I can; he sucks. He had a 5+ xFIP last year with a 17.4 K% and a 9 BB%. There's no reason we need to dance with that devil.
The reality on Horton is this: he's got maybe 120 IP this year. You can either spend those in Iowa, or you can spend them with the Cubs. If he was developing a third pitch, if he had mechanical issues, if there was a control question, or pitch shape issues...I'd say "let him work it in Iowa!" Here's the rub; he has none of that. He's grading out like a stuff+ monster, inducing a good amount of whiff, he's got a developing curveball he's more and more comfortable tossing and he lights up the strike zone.
The only hurdle left is: can he go 5 IP? With the amount of strikes he throws, he doesn't need 100 pitches to get through five. He's looking less gassed as the day goes on and he's gone 76 the last three. I truly think he'd have gone over 80 today but he was so damn economical through six that the Cubs just pulled the plug on him going out in the seventh for a single hitter.
Yeah, Cade is about ready. I'd say if Shota was down tomorrow on the IL, or any one was, Cade Horton would get the call. I also think he's that good. Since the first game he threw with Myrtle, there was a different kind of dude on the mound I hadn't seen come through the system in a hot minute.