DCI question...

I understand Delta has contracts in place with several DCI carriers such as Skywest, ASA/Expressjet, Pinnacle, Go Jets, etc. These contracts specify a certain number of aircraft in service with laddered expiration dates.

But I think there are provisions to adjust what Delta pays based on some factors. I've been looking at the Regional forum and the angst surrounding the Pinnacle debacle. It seems pilots from other DCI carriers are urging the Pinnacle pilots to vote no as reduced wages at Pinnacle will lower their costs and contribute to the "race to the bottom".

Could someone (Bucking Bar, GeorgeTG, ACL65, etc.) please explain how these contracts "reset". For example if one carrier bids a lower amount for a certain route how that affects what Delta pays another DCI carrier?

IIRC Skywest negotiated a sweetheart deal for themselves when Delta was in the throes of bankruptcy. If a start up regional carrier underbids Skywest on say SLC-BZN what (if anything) happens?