Crochet and Bello are sure things. My worry is that the rest of the rotation will be question marks. Sandoval and Dobbins will be both coming off injuries and it's hard to know what you're going to get post rehab. Same story for Kutter Crawford, but he was even a back end of the rotation guy when healthy. Tolle is exciting, but I wouldn't expect him to all of a sudden be a #3 right out of the box. There's usually an adjustment period with young guys no matter how talented. Criswell will be completely out of options next season, so I think he'll no longer be on the team. Fitts has been ok, but isn't a consistent 5-6 innings guy as his stuff slips as he gets later on in games. Houck is out. Harrison has pitched like Buehler for the most part (very high walk rate, doesn't go long). Hard to see what he'll look like coming into next season. Maybe he can figure it out and be a part of the rotation, but it's still a question mark for now. I wouldn't be surprised if Early got quite a few starts next season.
#1 Crochet
#2 Bello
#3 Acquisition
#4 Sandoval
#5 Tolle
Depth: Dobbins, Harrison, Crawford, Fitts, Early
I think that looks a lot better than if they don't acquire another starter and have to rely on one of the depth starters for 20+ starts right off the bat.