In 2012, Sumlin led the Aggies to an 11–2 record, including victories over then-No. 1 Alabama, and No. 11 Oklahoma in the AT&T Cotton Bowl. Starting quarterback Johnny Manziel won the Heisman Trophy. The Aggies finished the 2012 season ranked in the top 5 of both the Coaches Poll and the AP Poll. Texas A&M also led the SEC in total offense, total scoring offense, total rushing yds, and led the nation in third down conversion percentage. Kevin Sumlin and the Texas A&M Aggies became the first SEC team in history to amass over 7,000 yds in total offense. Sumlin's 2013 Aggies, led by Manziel, finished with a 9–4 record, which included a victory over Duke in the Chick-fil-A Bowl. On November 30, 2013, A&M signed Sumlin to a six-year, $30 million contract extension.