Gregg Brandon (born February 29, 1956) is an American football coach and former player.
 He is currently the head football coach at the Colorado School of Mines.
 Previous to that, he was the offensive coordinator at New Mexico State University and coached tight ends in the UFL for the Las Vegas Locomotives.
 He also spent two years as the offensive coordinator at the University of Wyoming and was offensive coordinator for the Virginia Cavaliers for the duration of the 2009 season.
 He was head coach for the Bowling Green Falcons, but was fired following the conclusion of the 2008 season, after six years at the helm, which included three bowl appearances and shares of two division titles.
 Brandon had previously been an assistant coach and offensive coordinator at Bowling Green under head coach Urban Meyer before Meyer left for the University of Utah in 2003.
George Sefcik (December 27, 1939 – January 23, 2016), was an American football coach.
 He was the offensive coordinator of the Kansas City Chiefs in 1988, and the Atlanta Falcons from 1997 through 2001.
 He coached in 2 Super Bowls - XXXIII with the Atlanta Falcons and XVI with the Cincinnati Bengals.
 He has a total of 29 years coaching experience in the National Football League as an assistant coach and offensive coordinator.
 He was also a college football coach and offensive coordinator for 9 years.
Brian Daboll (born April 14, 1975) is an American football coach who is the offensive coordinator for the University of Alabama.
 He is a veteran professional coach, and previously served as the offensive coordinator for the NFL's Cleveland Browns, Miami Dolphins and Kansas City Chiefs.
Ted Cain (born c. 1952) is a former American football coach who coached in the college football ranks for over 30 years.
 He is the former offensive coordinator, former special teams coordinator, and former tight-ends coach at Vanderbilt.
 He was at Vanderbilt as offensive coordinator and tight ends coach for 9 years under head coach Bobby Johnson whom he followed to Nashville from Furman, his alma mater, and later as tight-ends coach and special teams coordinator under head coach Robbie Caldwell.
 He coached standouts Jay Cutler and Earl Bennett, both of whom were voted All-SEC during their time in Nashville.
 Cain started his career in 1977 at Furman and remained there until the 1986 season, where he took over as North Carolina State's offensive coordinator and tight ends coach.
 He served as offensive coordinator until the 1997 season, when he was hired as the head coach at the Virginia Military Institute.
Jamin Elliott (born October 5, 1979) is a former American football wide receiver.
 He was originally drafted by the Chicago Bears in the sixth round in 2002 NFL Draft.
 He played college football at Delaware.
 Elliott caught 66 passes for 745 yards and 12 touchdowns for the Georgia Force during the 2006 season where he was once again reunited with his former Delaware quarterback Matt Nagy.
Mike O'Cain (born July 20, 1954) is an American football coach and former player.
 He is currently the offensive coordinator and quarterbacks coach for the East Tennessee State University football team.
 He was the former offensive coordinator for James Madison and served as quarterbacks coach for the Virginia Tech Hokies football team, a position he had held from the 2006 season until the end of the 2012 season.
 O'Cain served as the head football coach at North Carolina State University from 1993 to 1999, compiling a record of 41–40.
 He played football as a quarterback and punter at Clemson University from 1974 to 1976.
Todd Haley (born February 28, 1967) is an American football coach who is the offensive coordinator for the Pittsburgh Steelers of the National Football League (NFL) Haley recently served as the head coach of the Kansas City Chiefs of the National Football League (NFL) from 2009 to 2011.
 Prior to joining the Chiefs, Haley served as the Arizona Cardinals' offensive coordinator from 2007 to 2008, and was the wide receivers coach for the New York Jets, Chicago Bears, and Dallas Cowboys.
Matt Nagy (born April 24, 1978) is an American football coach and former quarterback who is the offensive coordinator for the Kansas City Chiefs of the National Football League (NFL).
 He played college football for the University of Delaware, and subsequently was signed as a street free agent by the New York Dragons of the Arena Football League (AFL).
 He played for the Dragons, Carolina Cobras, Georgia Force and Columbus Destroyers of the AFL for six seasons before beginning his NFL coaching career.
William Muir (born October 26, 1942) is a former American football coach who served as the offensive coordinator for the Tampa Bay Buccaneers and later as the offensive coordinator and offensive line coach of the Kansas City Chiefs.
 Muir was fired from the Buccaneers along with five fellow assistant coaches on January 18, 2009.
 Muir has coached for 8 NFL franchises, 3 different colleges, and 2 minor league football teams with over 40 years combined coaching experience.
 Muir announced his retirement from coaching on February 1, 2012.
 Muir graduated with a B.A. from Susquehanna University in 1965.
 Muir is married to Barbara and has 2 children and 5 grandchildren.
Charlie Taaffe (born April 20, 1950) is an American gridiron football coach.
 After retiring in 2014, he was hired by a company called Quarterback Country to run a year-round quarterback training and development program.
 He served as offensive coordinator for the UCF Knights from 2009 to 2014.
 Taaffe's coaching career stretches back to 1973, when he was an offensive coach for the University at Albany.
 From 1984 to 1986, he was an offensive coordinator for Army, as well as for the Maryland Terrapins from 2001 to 2005, and the Pittsburgh Panthers for the 2006 season.
 Taaffe also served as the head football coach at The Citadel from 1987 to 1996, and was the head coach of the Canadian Football League Montreal Alouettes and Hamilton Tiger-Cats.

Question: During the 2006 season, Jamin Elliott was reunited with what former Delaware quarterback, who is an American football coach and the offensive coordinator for the Kansas City Chiefs?
Answer: Matt Nagy