How can the Diamondbacks keep Zac Gallen in Arizona for the long term?

Recent starting rotation struggles have only highlighted how good Zac Gallen has been for the Diamondbacks. Is a setback in his Cy Young bid a good thing for Arizona’s chances at keeping him in the Valley? We also discuss how good Tommy Pham has been in September, which teams have been eliminated from playoff contention, and our weekly MLB Power Rankings.