Curtis Bolton, Kenneth Murray fortify Oklahoma’s defense By admin on September 14, 2018 in Sooners Inside linebacker has grown into a position of strength for OU. Coming into the 2018 season, the big question facing the Oklahoma Sooners’ linebacking corps appeared to be how junior Caleb Kelly would handle a move inside. Through two games, it hasn’t made much of a difference. That’s not Kelly’s fault. Instead, fifth-year senior Curtis Bolton has claimed the WILL position for his own.