Sitake played college football as a fullback at Brigham Young University, under coach LaVell Edwards and graduated in 2000.
He has been the head football coach at Brigham Young University (Brigham Young University) since December 2015. Sitake is the first Tongan to become a collegiate football head coach. His family immigrated to the United States when he was a child, living in Laie, Hawaii.
He went to high school in Kirkwood, Missouri.
Sitake got his start as an assistant coach during the 2001 season when he worked as the defensive backs coach and special teams coordinator at Eastern Arizona College. In 2002, he returned to his alma mater, Brigham Young University, as a graduate assistant for the defense.
From 2003 to 2004, he worked at Southern Utah University. During the 2003 season, he was the running backs and tight ends coach.
He coached the offensive line and tight ends during the 2004 season.
His tenure at the University of Utah started in 2005, where he coached the linebackers, until being promoted to defensive coordinator on December 7, 2008. His formal duties began on January 3, 2009. Sitake became the first native Tongan named as a defensive coordinator at an National Collegiate Athletic Association FBS school, following the resignation of the previous defensive coordinator, Gary Andersen.
On December 23, 2014, Oregon State University announced Sitake"s hiring as the team"s new defensive coordinator and Assistant Head Coach.
This reunited Sitake with Oregon State"s head coach, Andersen, whom Sitake had previously worked with at Utah. On December 19, 2015, after Bronco Mendenhall coached Brigham Young University for the final time in the Las Vegas Bowl, Brigham Young University named Sitake as the team"s new head coach.