I'm not so sure about Chase over Colt...I think the more likely scenario is Colt winning the #3 job, and Chase going to the practice squad. I don't think Chase will be in high demand if cut, and will make it through waivers.
The more interesting battle (IMO) is for the 4th RB/6th WR spot...I think Zorn will carry either an extra RB or 6th WR. Shelton made some serious noise tonight, and at the very least earned a spot on the PS. Special teams, especially. I think with his TD catch, my main man Lanky locked up the 5th WR spot. Say goodbye to Hackett.