Let's look at some of the most compelling storylines for Halloween weekend 2009:
1. More Longhorns drama on Halloween?
Halloween weekend last year didn't turn out so well for the then-undefeated Longhorns. They went on the road to Texas Tech and got upset. This time, they face another potent offense in Oklahoma State, which comes into the game with the Big 12's leader in passing efficiency, Zac Robinson. OSU is sixth in the country in scoring and has been terrific in neutralizing pressure. The Cowboys have surrendered just four sacks this season (second in the country). Star OT Russell Okung already has shut out the country's leading pass-rusher, Texas A&M's Von Miller.
So will it be déjà vu for Mack Brown & Co. -- losing a big conference road game on the same weekend?