Assistant at Kansas He announced his retirement from professional basketball in 2003 and served for four years at the
University of Kansas as director of student-athlete development and team manager under KU basketball coach
Bill Self. Manning was promoted to assistant coach at the end of the 2006–07 season as a replacement for
Tim Jankovich who left the Kansas staff to take the position of head coach at
Illinois State University. Manning became a key component of the Jayhawks coaching staff, filling vital roles in both recruiting and his work training the team's big men. In his role as KU assistant coach, Manning worked with the Jayhawk big men and earned a reputation as one of the best coaches of big men in the country. He coached 12 NBA draft picks, including eight first-round selections. Kansas bigs among those NBA draft picks during his tenure included
Darrell Arthur,
Darnell Jackson,
Sasha Kaun,
Cole Aldrich, twins
Marcus Morris and
Markieff Morris,
Thomas Robinson and
Jeff Withey. Manning recruited two McDonald's High School All-Americans, including the 2010 NBA first-round draft pick and Oklahoman
Xavier Henry. He also coached two Academic All-Americans – Cole Aldrich and Tyrel Reed. Aldrich was selected as the 2010 Academic All-America of the Year for men's basketball. He spent a total of nine years on the staff at Kansas and was part of one NCAA national title, two Final Fours, five NCAA Elite Eight appearances, eight Big 12 regular-season conference titles, five Big 12 tournament championships, and 269 career victories.
Tulsa On April 4, 2012, Manning was officially announced as Tulsa's head coach. In his first year, the Golden Hurricane posted a 17–16 overall record and an 8–8 mark in Conference USA play, finishing fifth in the league's regular season. With the fifth-least-experienced team in the nation in 2012–13 and battling injuries all season, TU advanced to the semifinals of the Conference USA Championship and played in the CBI postseason tournament. Two Hurricane players,
James Woodard and D'Andre Wright, were selected to the C-USA All-Freshman Team. Tulsa improved their record to 21–13 in Manning's 2nd year, while going 13 – 3 in Conference play. Tulsa subsequently emerged as the C-USA regular-season leader and won the Conference tournament to advance onto an NCAA tournament berth for the first time since 2003. The Golden Hurricane lost in the second round to the UCLA Bruins 76–59. Manning was named the 2014 Conference USA Coach of the Year. He was also a finalist for two national Coach of the Year awards including the Jim Phelan Award and the Ben Jobe Award. Seven players moved on to play professional basketball once their careers concluded at Tulsa.
Wake Forest On April 4, 2014, Manning agreed to become the head coach at
Wake Forest University. He guided 14 players who went on to play professionally, including NBA players John Collins and Jaylen Hoard. Following the season, Manning received the Skip Prosser Man of the Year Award. His first season at the helm in 2014–15, a young Demon Deacon squad that had three freshmen among its top five scorers developed throughout the season despite a 13–19 record. Five of their wins came against teams that competed in the postseason, including a victory over eventual NCAA Sweet 16 squad NC State, while three of their losses were by single digits to teams ranked in the top-five nationally. The Demon Deacons went 11–20 during Manning's second season, highlighted by a third-place finish at the Maui Invitational. In 2017–18, the Deacs posted a pair of wins over Sweet 16 teams, downing Syracuse and Florida State and last year posted a win over a nationally ranked NC State squad. In 2019–20, the Demon Deacons posted wins over nationally ranked Xavier and Duke. 16 players made the dean's list and 29 players made 3.0 at some point during their career at WF.
USA Basketball In 2014, Manning served as a court coach at the 2014 USA Men's U18 National Team training camp with coaches Billy Donovan (Oklahoma City Thunder), Ed Cooley (Providence College) and Sean Miller (University of Arizona). The 2014 team won the gold medal. In 2017, he served with coaches John Calipari (Kentucky) and Tad Boyle (Colorado). The 2017 FIBA Under-19 Basketball World Cup was held in Cairo, Egypt, winning a bronze medal. In 2018, he served with Kansas head coach Bill Self, Dayton head coach Anthony Grant, won the U18 team, Gold Medal, competing in the 2018 FIBA Americas U18 Championship in St. Catharines, Ontario.
Maryland In 2021, Manning joined the coaching staff of his former Kansas teammate
Mark Turgeon at
Maryland. After Turgeon stepped down as head coach on December 2, 2021, Manning was named Interim Head Coach. Maryland finished the season 15–17 with seven quad 1 & 2 wins, four top 25 wins after playing 18 games vs teams in the 2022 NCAA Tournament. Maryland finished first in the Big Ten in both free throws made (456) and free throw percentage (.760), while ranking third in free throws attempted (600). The Terrapins were 13–1 when leading with 5:00 minutes to play, with its one loss of the season coming at No. 3 Purdue. They were also 10–4 when out-rebounding their opponent on the season.
Louisville Manning was hired as Associate Head Basketball Coach at the
University of Louisville on April 15, 2022. The team finished with only four wins and the worst season in modern history of Louisville men's basketball.
Colorado On May 7, 2024, Manning was hired as an assistant coach at the
University of Colorado. ==Other work==