Embarking on his 3rd season with the Hornets, Coach Campbell is no stranger to Fullerton College as his father, Dick Campbell, was on the Hornet coaching staff for 15 seasons during the Hal Sherbeck years. As a young boy, Garrett served as Fullerton's ball boy and then later grew to become a quarterback and wide receiver for the Hornets from 1995-96.
Born and raised in southern California Campbell, earned his bachelor's degree at nearby California State Fullerton in 1998. He then went on to earn his master's degree at Northern State University in 2002.
Campbell got his start in coaching at Fullerton College in 1998 and has since coached at Northern State, Willamette University, Menlo College and Carthage College and Illinois College.
Prior to joining the Hornet coaching staff, Campbell was the head coach of the Illinois College football team for eight seasons. He posted an overall record of 51-30 and led the 2011 Blueboys to their first-ever appearance in the NCAA Division III football playoffs.
Campbell has coached 75 all-conference selections and 209 academic all-conference selections, while guiding an offense that has consistently ranked among the best in NCAA Division III. From 2011 to 2013, Campbell's offense was ranked #8 out of 241 teams. In 2014 and 2015 they were ranked #9 and #10. In 2014, Campbell was voted the Midwest Conference Southern Division Coach of the Year leading the Blueboys to the 2014 MWC Southern Division Title. He also led them to four consecutive winning seasons, a first since the 1934-1937 seasons.
Campbell and his wife, Melissa, reside in Temescal Valley with their children, Olivia, Hayden and Carter.