As a player, DeGrenier played three seasons in the Arena Football League (AFL) with the Arizona Rattlers and Carolina Cobras.
[6] DeGrenier was head coach of the Cactus Shadows High School Falcons of Cave Creek, Arizona from 2004 to 2010.
[1][9] DeGrenier was head coach and general manager of the Utah Valley Thunder of the American Indoor Football Association in 2009.
[12] In January 2016, DeGrenier was named the head coach at Mesquite High School in Gilbert, Arizona.
[11] On December 16, 2024, DeGrenier was announced as the Arizona Bandits' head coach for their inaugural season in Arena Football One.