Question: In which season of coaching was the longer serving of the two coaches of the 2016 Auburn Tigers football team and 2016 Oklahoma Sooners football team ?  
Sentence (from "2016 Oklahoma Sooners football team"): The 2016 Oklahoma Sooners football team represented the University of Oklahoma in the 2016 NCAA Division I FBS football season, the 122nd season of Sooner football.
Relevant evidence: No