I think you have to give Romo one more year to prove or disprove himself. However, we definitely need to find a quality backup. I agree with the poster that said the Patriots probably will try to sign Matt Cassell. It definitely looks like they are going to need him for another year. I did have a few ideas for quarterbacks if, just for argument's sake, the Cowboys decided to look elsewhere at quarterback.
1-I am curious what the Cardinals do with Matt Leinart. He probably needs a change of scenery.
2-The Titans have to make some decisions in the offseason. Collins is not going to resign with them unless they give him a chance to start. If he is given the starting job, it could spell doom for Vince Young, and they have Chris Simms on the roster. If the Titans can't resign Collins, he could be a two year stop gap kind of guy. He still has a cannon. I actually thought Chris Simms was going to become a good quarterback as well. He would be an interesting possibility.
Now that I think about it, this speaks volumes about the lack of quality quarterbacking in the NFL. There just aren't many possibilities out there.