The Stanford football program had a busy Wednesday, as it announced its new slate of coordinators amid the bustle of National Signing Day.

The Cardinal promoted Pep Hamilton from wide receivers coach to offensive coordinator. He will also coach quarterbacks. Derek Mason, who coached defensive backs last season and will retain that responsibility, was promoted to associate head coach and co-defensive coordinator.

“Derek is excited about the opportunity to take on a bigger role in leading our team and defense,” said head coach David Shaw in a release. “Derek is a guy who we have always leaned on for game planning purposes and to motivate our players to play at their highest level.”

Joining him as the other co-defensive coordinator will be Jason Tarver, the newest member of the staff who comes to the Farm from the San Francisco 49ers, where he coached outside linebackers. Tarver, who was born at Stanford and attended nearby Foothill High School, will also coach the inside linebackers for the Cardinal. Stanford has shown an affinity for NFL coaches in recent seasons, and Tarver brings 10 years of experience at that level to the staff.

“He has been very successful in training linebackers for the system we run,” Shaw said. “His hiring was a no-brainer. We are very excited to have Jason on board.”

The Cardinal had openings after Shaw was promoted from offensive coordinator to head coach, and defensive coordinator Vic Fangio and associate head coach Greg Roman left the Farm to join Jim Harbaugh with the Niners.

This will be the 36-year-old Tarver’s first coordinator job, while both Mason and Hamilton have brief experience in their roles, both at the FCS/D1-AA level—Mason at St. Mary’s, Hamilton at Howard. Hamilton was slated to be the co-offensive coordinator at New Mexico last season before abruptly leaving Albuquerque for Stanford. He called the Cardinal’s red zone plays last season; Stanford finished with the nation’s ninth-best scoring percentage from inside the 20, converting at an 89 percent clip.

“Pep is more than ready for this job,” Shaw said. “He did a great job for us last year. He brought new concepts to our offense, which were invaluable for us in the red zone and was a big part of our success in the passing game all season.”

With the hirings, Stanford has rounded out its defensive staff, but still has a number of vacancies on the offensive side of the ball.