Troy E. Renck's article discusses the possibility of the Rockies chasing after Wandy in the off-season:
For the Rockies to improve next year, they must upgrade their rotation. It's why they placed a waiver-claim on Houston's Wandy Rodriguez and why they likely will pursue him in the offseason (talks aren't going anywhere if the Astros insist on acquiring pitcher Drew Pomeranz and catcher Wilin Rosario).
Even with the humidor, the Rockies know a salient truth: It's a lot easier to trade for a pitcher than to sign him as a free agent.