However, if that doesn't happen, have you seen enough of Tj Yates to believe he will/will not finish what Schaub started if the opportunity repeats itself?
I know your question was aimed at DB, but I'll take a swing at it too.
It doesn't matter if we've seen enough of Yates, or not, to make a decision. That's what people are failing to understand. We have limited choices right now:
1. Sign a FA guy to compete in camp, to challenge Yates or be a replacement for Schaub if he can't return for a myriad of reasons.
2. Draft another QB, somewhere in some round of the draft, and have HIM compete with Yates and/or the FA QB we signed to compete with Schaub/Yates.
3. Name Yates the starter, by default, and roll with it through OTAs, camp, preseason, reg season opening games...biding time for Schaub to fully return and using Yates as a fallback option if Schaub can't return or stay on the field.
None of these scenarios involve Matt Schaub being the Day 1 QB1 when reg season begins because it's virtually impossible for him to have gained back all that he lost during post-op "rest period" AND be a QB1 right out of the gate by September. If he is, and if he remains and is frolicking around out on the field and winning games right and left all season long then he should be cloned because it means he's not a mortal man like Ty Law, Warrick Dunn, Glen Earl, Duce Staley, etc.
This means you got three options (listed above).
I think we'll add a camp arm or two or three, for sure. But I expect Kubiak to be loyal (as he always is) to the one he brought to the dance. He can't be loyal to Schaub, yet, due to circumstances, but he can be loyal to Yates. It's what has made the Texans the resilient team that they were in 2011--Because they all know that Kubiak has your back and he won't toss you to the trash can if you have a bad day or week or hell, even a bad season.
Nobody knows what we have in Yates, though the Ravens playoff game is being used by some as the ultimate proof of what we have in Yates. What makes 2012 so interesting, already, is that we DO get to see what Yates has or what Kubiak has planned if Yates isn't the QB1 after all.
If we sign all our guys back, with Foster being the chief weapon on offense we must re-sign, then whomever is QB is going to be the key decision for this team. Everything else runs like clockwork, but the QB decision will be paramount to the rest of the offense being able to function as its designed by Kubiak and Dennison.
I am not a Yates homer, but I think Kubiak rolls with him right out of the gate and adds camp arms to supplement Yates as insurance against Yates cratering early on or getting hurt. Leinart should not be on this roster, btw. I know you disagree, but the guy is hot garbage and it's time to cut him loose. The Jax game was all the proof I need to make that analysis, and Yates came in like a fireball and led the team VERTICALLY down the field before Kubiak handcuffed him (for good reason).