Coming from a completely unbiased Texas point of view, and a completely biased Houston Texans point of view, I'm really happy we have two capable QBs playing behind Schaub.
For one, it's good to have solid depth just in case we get unlucky, and for two, it will keep Matt on his toes. I want Schaub to succeed, but I'm still pretty salty about seeing him throw balls at his feet, even when the play was still alive in the playoffs against the Patriots.
As for the "backup quarterback" controversy, I think Case comes close but Yates wins out at least for this season. The NFL is a "what-have-you-done-for-me-lately?" kind of league, and people remember the last time Yates was given consistent time as a starter, he performed. I still remember TJ's drive against the Bengals that finally clinched that elusive playoff berth. He performed admirably that season with the reps.
Just to play devil's advocate, does anyone remember that play in TJ's first start against the Falcons, play action by design, TJ stumbles initially, regains balance and hits Johnson in stride over the middle deep? Had Case done that exact play, this site would be shut down due to traffic.
Case is talented no doubt (I also understand cheering for homegrown talent, for basketball fans, Wiggins is a big deal right now in Toronto), but he faces an uphill battle as an undrafted QB. For me, and others, you've got to bring Kurt Warner, Warren Moon, and Tony Romo into the discussion when bringing up undrafted yet successful QBs.
For Warner and Moon however, they both had to not only experience failure, but also found playing time elsewhere before being given a shot. Warner was cut and ended up almost completely ditching the sport, but found a niche in the Arena Football League, built up confidence then the rest is history. Moon played in the CFL, was amazing, and then the NFL bid on him realizing they messed up.
Romo is a bit of a different story. He was brought onto a team that didn't exactly have any competition. Chad Hutchinson, who was a baseball player first really, wasn't anything, Vinny Testaverde was brought in to really mentor guys like Carter (who failed his drug test, and was also another baseball guy), and Bledsoe was simply running his victory lap at this point. This scenario and strong support from Sean Payton is what allowed Romo to dart up the depth chart.
At the same time, some people who use Romo as an example of an undrafted QB, have also ripped Romo as a QB in the past.
Either way, I think Yates wins out, but if Case succeeds and beats the odds, even better because I know the coaching staff will make the right call for this team. If Case gets it, it's because he earned it, and not because of UH bias like some people. And that's the way it should be, because this team is entering uncharted territory, we expect a Super Bowl now, so we should put forth the best team possible.