Posted by ESPN.com's Adam Rittenberg
But since the coverage gaffe that allowed Powell to run free behind corner Amari Spievey, the Hawkeyes' back four has stepped things up significantly. Spievey hasn't made a mistake since and nearly notched an interception, and cornerback Shaun Prater picked off Clark inside Iowa territory.
Prater was suspended for Iowa's first two games after an OWI arrest in March. The Hawkeyes certainly missed his presence opposite Spievey in the secondary.
Even though Iowa still trails 10-5, it feels like the Hawkeyes have the momentum.