Cowsette brings 16 years of collegiate coaching to the Roughriders defensive line. He has a strong resume of developing defensive linemen and coaching top performers and all-conference stars. Cowsette was most recently the assistant defensive line coach at Air Force Academy, where he coached three first-time starters to success on the defensive line, including a senior who flipped from the offensive line and went on to lead the Falcons in tackles for loss and sacks.

Prior to that, Cowsette served as the defensive line coach at the University of Maryland (2019), the University of Albany (2014-18), Hampton University (2010-11,2013-14), and the Virginia Destroyers of the UFL (2011), helping the team capture the UFL Championship.

Cowsette began his coaching career at the University of Maryland as an assistant strength and conditioning coach (2007) before becoming the assistant defensive line coach in 2008.

As a player, Cowsette was a four-year standout at the University of Maryland (1996-99) earning First-Team All-ACC honors and remains 12th all-time in the Maryland record books with 31 tackles for loss. Cowsette was drafted by the Washington Commanders and played for the New York Giants, Tampa Bay Buccaneers and Chicago Bears from 2000-06.

A native of Cleveland, Ohio, Cowsette is married to Alena Cowsette. They have three children: Laila, Delbert II, and Joseph Cowsette.