Basically everything that TT said, but I find this part especially questionable. You spent a couple paragraphs talking about how Ross didn't use Canario or PCA enough and then blamed that for....injuries to Alzolay, Fulmer, Bellinger in May, and Madrigal? How exactly were those two outfielders, the 8th and 11th best hitters at Iowa with over 100 PAs per wRC, 1/14 with 1 home run and 2 walks combined in the majors, supposed to help avoid those? I'm not saying that those guys can't seriously contribute to a future good Cubs team (or even a present good Cubs team), but....the entire Iowa team has an .841 OPS this year. It's just a completely different sport. It's bad luck, I guess, that our top prospects support (in a post-Mervis world) happened to be pure outfielders which is the last thing we need. But unless you wanted like, the Ian Happ, second baseman, experiment again, hands are kinda tied.
The bullpen is full of bad pitchers trying to back up a rotation that has been for the last month essentially one seriously overworked ace and 4 dudes either outright sucking or peripherally sucking. It'd be great if Ross had the 'Devin Williams' or 'Josh Hader' or hell, even 'Josh Suter' button to press, but he doesn't. I keep hearing those dudes are coming, and maybe they are. But we had like three decent, non elite pitchers (Alzolay, Leiter, Merryweather) and a bunch of garbage. No one's going to be able to do anything with that over a 6 month period.