Since we have such a big lead, I think it makes sense to keep reliever depth in the organization and keep Lee down. Like, if we don't have to cut McHugh, he could still figure something out before the end of the year and make the playoff roster. Or if someone goes down, it sorts itself out, and there's a better replacement available.
Same somewhat applies with Chirinos/Soroka and service time. We've seen Soroka and the results really aren't dramatically different from what Chirinos gives us no matter how much we want them to be. Winans has looked better, but who knows if it's sustainable.