Walker enters his fourth year as a coach in the AFL and second with the SaberCats.
In his first season in San Jose, Walker presided over a record-setting defensive line, as the SaberCats set a new AFL single-season record for sacks as a team with 42 (breaking the Tampa Bay Storm’s previous record of 41 from 2011). Defensive lineman Joe Sykes also set a single-season league and franchise record for sacks with 16.0. The team allowed the ninth fewest total yardage at 293.2 yards per game and they forced 42 turnovers.
Walker served his second season with the Milwaukee Mustangs this past year, overseeing a defense that finished among the league leaders in numerous categories. Milwaukee ranked first in total defense (266.8 yards/game), fourth in scoring defense (48.2 points/game), second in pass defense (247.6 yards/game), second in takeaways (55) while finishing with 17 touchdowns scored.
In his first full season as a coordinator in the Arena Football League, Walker helped the Milwaukee Iron to an 11-5 record and a Midwest Division Title in 2010. His defense finished second in the league with 25.5 sacks and fourth with 20 interceptions. Before making the jump to the AFL, Walker spent one season with the Green Bay Blizzard of arenafootball2 in the same capacity, with his defense registering the most sacks and the sixth fewest touchdowns allowed in 2009.
Walker's first head coaching stint in Arena Football came with the Tri-Cities Fever (2008) and Everett Hawks (2007) of af2. In his first season as a head coach of Everett the defense ranked third in the af2 and finished with an 8-8 record becoming the only expansion team to make an appearance in the playoffs. His first career opportunity at coordinator came with the Bakersfield Blitz of af2 in 2006 where he oversaw the second best defense in the league.
A ten-year veteran of the Arena Football League, Walker played for the Las Vegas Gladiators (2005), Austin Wranglers (2004-05), Chicago Rush (2001-03), Indiana Firebirds (2001), Arizona Rattlers (1997-2000) Orlando Predators (1996) and Charlotte Rage (1996). He finished his career with the seventh-most tackles in AFL history at 614.0 to go along with 85 passes defensed, 23 interceptions and 10 forced fumbles.
Walker played collegiately at Stephen F. Austin State University where he was named an All-American for four consecutive seasons.