Oklahoma is brimming with confidence, while Notre Dame is awash in questions after falling out of the rankings.

The No. 11 Sooners (4-0) head back into Big 12 play as the highest-ranked team in the conference with a home game Saturday against TCU. Defensive end Geneo Grissom says Oklahoma's 35-21 victory over Notre Dame, just its second in 11 tries against the Irish, gave him confidence in his team's defense, which keyed the victory with three interceptions.

The unranked Irish will try to rebound against No. 22 Arizona State. Notre Dame coach Brian Kelly says the Irish need to focus on simply getting better. For Notre Dame, the loss was especially frustrating, not only because the Irish found themselves quickly behind by 14, but because they have been so inconsistent.