Clarence McKinney elevated at Texas A&M

After calling plays for Texas A&M in the Aggies' 41-13 win against Oklahoma in the AT&T Cotton Bowl, running backs coach Clarence McKinney was promoted to co-offensive coordinator for next season, a source told ESPN.com.

The source also said that McKinney will be the Aggies' primary play-caller. Former West Virginia quarterbacks coach Jake Spavital will serve as the other co-offensive coordinator and will coach quarterbacks, the source said. CBSSports.com earlier reported the hiring of Spavital.

With McKinney calling plays, the Aggies registered 633 yards of offense and 28 first downs against the Sooners. Heisman Trophy winner Johnny Manziel also set a bowl record for total offensive yards (516).

McKinney has been with first-year A&M coach Kevin Sumlin since 2008, and will help keep some familiarity within the offense after former offensive coordinator Kliff Kingsbury left to become the head coach at Texas Tech. There will likely be some tweaks, but nothing major.

The thing to watch is how McKinney and Spavital interact with Manziel during games. Kingsbury did a very good job guiding Manziel through games. He was extremely patient with Manziel, who had a thirst for improv during games. He's obviously growing, but I doubt any coach will be able to get rid of Manziel's off-the-cuff mentality. But being able to teach Manziel as he goes is something Kingsbury was really good at, and now Manziel will be learning from two other people.