Cooper announced the news on Twitter Thursday afternoon.
Cooper spent a year as an assistant coach Michael Kneip, who also played for Washington, at Bellevue High School. The team went 12-1 and made the 3A state semifinals, where it lost to eventual state champion Eastside Catholic.
At Washington, Cooper came in as a heralded recruit in Steve Sarkisian’s first season but saw the field in just three of his six years as a Husky during a stretch that was marred by multiple season-ending injuries. He became beloved by many Husky fans.
Seeking a fresh start and a bigger role on the field, he transferred to San Jose State as a redshirt senior in 2016. That year was his most productive: 112 carries, 484 yards and two touchdowns.
He now takes over a Highline program (2A South Puget Sound League) seeking its first winning season in years. The Pirates went 4-6, 2-5 2A SPSL last season.