Erickson's early success at ASU was not sustained, as the Sun Devils failed to have another winning season and lost three of four Territorial Cup rivalry games against Arizona. In his final four seasons, Erickson was 21–28 overall and 14–22 in conference. After opening the 2011 season with a promising 6–2 record, Arizona State suffered four straight Pac-12 defeats in November to end the regular season, and Erickson was fired on November 28. He was allowed to coach in their bowl game on December 22, but ASU was soundly beaten 56–24 by Boise State in the Maaco Bowl in Las Vegas for their fifth consecutive loss.