The order of the 4 is a lock. Max is the unquestioned #1. Stras already was the #2, and he's been the best pitcher on the planet for a month now. He's on fire. Gio has had a fantastic season, so he's clearly the #3 ahead of Roark. Roark is clearly the guy ahead of Jackson as #4.
I do wonder if we'd consider using Scherze on 3 days rest instead of Roark at some point?