Southern California hired North Texas offensive coordinator Graham Harrell as its offensive coordinator and quarterbacks coach on Wednesday night, filling the vacancy abruptly left by Kliff Kingsbury with a coach holding remarkably similar credentials.

Trojans head coach Clay Helton picked Harrell just over three weeks after Kingsbury ended his nearly five-week tenure in the job to become the head coach of the NFL's Arizona Cardinals.

The 33-year-old Harrell spent the past three seasons running the offense at North Texas, creating a powerhouse unit for a pair of bowl teams in the past two seasons. The Mean Green were 20th in the FBS in total offense last season with 460.5 yards per game, and 26th in scoring with 34.6 points.