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Football Coaching Staff
Justin Manning
Football Operations Assistant/Defense
Coach Info:
Position: Football Operations Assistant/Defense
Alma Mater: N.C. Central '11
Phone: (919) 684-2635

Justin Manning joined the Duke coaching staff in May of 2017 and serves as a Football Operations Assistant working primarily with the defense.

The 2018 season had Duke’s defense close the season on a high note, allowing just 54 yards of total offense in the second half of the Walk-On’s Independence Bowl, including holding Temple to -29 rushing yards in the second half. Manning spent much of the campaign working with the defensive line, helping Chris Rumph II earn Freshman All-America honors from USA Today. Rumph II tied for 36th in the ACC in sacks and tied for second among the league’s freshmen with 3.0. His 8.0 tackles for loss were the sixth most in a year by a rookie at Duke and tied for the second most by an ACC rookie.

In 2017, the Blue Devil defense proved to be one of the best in the ACC, ranking among the league’s leaders in both scoring defense (3rd) and total defense (4th).  Headlined by All-America linebacker Joe Giles-Harris and All-ACC tackle Mike Ramsay, Duke was one of just four defenses in the ACC to have four players register 9.0 tackles for loss or more each, joining Florida State, Miami and Virginia Tech.

Manning spent the 2016 season as a cornerbacks coach at Tufts University, helping the Jumbos to a 7-1 record, the program’s best record since 1998. Including the Jumbos’ 6-2 finish in 2015, the 13 wins in the two seasons were the most for Tufts since 1979-80.

Tufts’ defensive unit held foes to 18.9 points per game and just seven rushing touchdowns during the campaign. Sophomore cornerback Tim Preston was selected to the New England Small College Athletic Conference First Team after leading the league with five interceptions, highlighted by a 99-yard return for a touchdown against Colby College.

Manning spent the summer of 2015 as a coaching intern with the NFL’s San Diego Chargers, where he assisted with the daily preparation of the tight end unit, served as quality control of the two-minute offense and handled statistical analysis and film breakdown of opponents’ two-minute offenses. 

Prior to his summer stint in the NFL, Manning served the 2014-15 seasons in a variety of roles at Boston College. He was an assistant recruiting specialist, special teams assistant and assistant running backs coach during his time with the Eagles. While at Boston College, Manning worked with All-ACC running back Jon Hilliman.

A native of Raleigh, N.C., Manning graduated from N.C. Central in 2011 with a degree in business administration and was a four-year letterwinner (2008-09-10-11) as a fullback with the Eagles.  He earned a master’s degree in criminal justice from Fayetteville State University in May of 2014.