Grandpa Rossy needs to sack the fuck up and stash Arrieta in the bullpen. Bad enough that he's a Trumpist chud who refuses to get vaccinated, but he's utterly washed up and Ross refuses to even risk offending his former teammate. This is precisely what I was afraid of when the Cubs held their joke of a managerial search after telling Maddon to fuck off (justifiably so) when even a blind man could see that the job had already been promised to Ross, which is why a ton of candidates refused to interview.
Scrubs like Arrieta and Williams are only on one-year deals, anyway. The season's lost, call up guys like Thompson, Steele, Stewart, Abbot, etc., and see what they've got. This is the perfect time to let the guys in the minors get some innings without having to worry about results.