Coach Garrett Casteel joined the Wolverine program in 2017 as the Cornerbacks coach, in which he helped mentor Will Brocchini, who earned consensus All-American honors after leading the nation with 11 interceptions. Coach Casteel will now be working with the Wide Receivers, focusing specifically on the inside receivers, a position vital to the Air Raid offense. Coach Casteel's coaching and recruiting abilities bring a lot to the table for the Sierra College coaching staff.
He has coached at Vista del Lago (football and baseball), Folsom Youth football and most recently Mira Loma High School before joining Sierra College. He is a Folsom High School graduate of 2007, playing football and baseball. He attended Folsom Lake College and Cal State Sacramento, where he earned his B.A. Sociology.