Question: Cleve Bryant, is a former American football player and coach, and worked for which former American college football coach, at the University of North Carolina at Chapel Hill?
Context: Edward Lawrence "Eddie" Greene, sometimes spelled Green (c. 1884 – September 27, 1952), was an American football player and coach of football and baseball.  He served as the head football coach at the University of North Carolina at Chapel Hill in 1908 and at North Carolina College of Agriculture and Mechanic Arts, now North Carolina State University, from 1909 to 1913, compiling a career college football record of 28–11–5.  Greene was also the head baseball coach at North Carolina A&M for one season in 1912, tallying a mark of 13–6–1.  He played college football at the University of Pennsylvania, where he was named an All-American in 1906.  He later served as the general manager of the National Better Business Bureau until his death from a heart attack in 1952. Stephen Nickolas "Steve" Belichick (Biličić) (January 7, 1919 – November 19, 2005) was an American football player, coach, and scout.  He played college football at Western Reserve University, now known as Case Western Reserve University, from 1938 to 1940 and then in the National Football League (NFL) with the Detroit Lions in 1941.  After serving in World War II, Belichick began his coaching career.  From 1946 to 1949, he was the head football coach and the head basketball coach at Hiram College.  He continued on as an assistant coach in college football with stints at Vanderbilt University (1949–1952), the University of North Carolina at Chapel Hill (1953–1955), and then for 34 years at the United States Naval Academy (1956–89). John Gutekunst (born April 13, 1944) is an American football coach and former player.  He is currently the inside linebackers coach for North Carolina A&T State University.  He served as the head football coach at the University of Minnesota from 1985 to 1991, compiling a record of 29–37–2.  Gutekunst came to Minnesota in 1984 as an assistant coach and took over as interim head coach in 1985 for the Independence Bowl after Lou Holtz left the team to become the head coach at Notre Dame.  Gutekunst was promoted to head coach before the next season.  He has also served as an assistant coach at Duke University, Virginia Polytechnic Institute and State University, Wake Forest University, Rutgers University, the University of Rhode Island, the University of South Carolina, the University of North Carolina at Chapel Hill, and East Carolina University.  He joined the East Carolina staff in October 2009, taking over for Rock Roggeman, who left on indefinite medical leave.  Gutekunst is an alumnus of Duke University, where he played football and baseball. William Mack Brown (born August 27, 1951) is a former American college football coach.  He was most recently head football coach of the Texas Longhorns football team of the University of Texas at Austin.  He is currently a college football commentator for ESPN. Dick Bestwick (born August 18, 1930) is a former American football player, coach, and college athletics administrator.  He served as the head football coach of the University of Virginia from 1976 to 1981, compiling a record of 16–49–1.  A native of Grove City, Pennsylvania, he played college football at the University of North Carolina at Chapel Hill, graduating from the school in 1952.  Bestwick received his Masters in Education from Pennsylvania State University.  Prior to his tenure at Virginia, Bestwick spent 1954 to 1962 as a high school football coach at three different schools including his alma mater, Grove City High School, and 1967 to 1975 as an assistant coach at Georgia Institute of Technology.  Bestwick was hired as the head football coach at Marshall University in 1971 after the 1970 plane crash that took the lives of most of the university's football team and coaching staff.  He left the position after two days on the job and returned to Georgia Tech. Robert Allison "Bob" Fetzer (September 9, 1887 – May 19, 1968) was an American football coach, track and field coach, and college athletics administrator.  He served as the head football coach at Davidson College in 1914 and as co-head football coach at the University of North Carolina at Chapel Hill with his brother, Bill, from 1921 to 1925, compiling a career college football record of 35–13–5.  Fetzer was also the head track coach at North Carolina from 1921 to 1952 and the school's athletic director from 1923 to 1952. Ronald Rusnak (born September 8, 1951) is a former American football player.  He grew up in Prince George, Virginia, and played college football at the offensive guard position for the University of North Carolina at Chapel Hill.  He played for the 1971 North Carolina Tar Heels football team that compiled an 11-1 record.  He was six feet, two inches tall and weighed 220 pounds while playing at North Carolina.  He was twice selected as an All-Atlantic Coast Conference (ACC) player and was a unanimous first-team selection to the 1972 College Football All-America Team.  He also won the 1972 Jacobs Blocking Trophy as the best blocker in the ACC. Hector William "Hec" Cowan (July 12, 1863 – October 19, 1941) was an American football player and coach, and an ordained Presbyterian minister.  He played college football at Princeton University from 1885 to 1889.  He was team captain for Princeton and selected to the first College Football All-America Team in 1889.  Cowan served as the head football coach at the University of North Carolina at Chapel Hill for two games during the 1888 season and at the University of Kansas from 1894 to 1896, compiling a career coaching record of 18–8–1.  He was inducted into the College Football Hall of Fame as a player in 1951. Cleve Bryant (born March 27, 1947) is a former American football player and coach.  He served as the head football coach at Ohio University from 1985 to 1989.  Bryant was later the Associate Athletics Director for Football Operations for the Texas Longhorns football team.  His responsibilities ranged from administrative operations to scheduling, as well as day-to-day operations of the football team and its facilities.  Bryant worked for Mack Brown at the University of North Carolina at Chapel Hill and followed Brown to the University of Texas at Austin in 1998.  Bryant was the wide receiver coach at Texas under John Mackovic from 1992 to 1994, before he joined Brown's staff at North Carolina. The North Carolina–NC State football rivalry is an American college football rivalry between the North Carolina Tar Heels football team of the University of North Carolina at Chapel Hill and NC State Wolfpack football team of North Carolina State University.  Both universities are members of the Atlantic Coast Conference (ACC) and are permanent cross-division opponents.  North Carolina leads the all-time series 66–34–6, though the rivalry has been very competitive in the ACC era.  North Carolina State won the most recent contest, 28-21, on November 25, 2016.  The Wolfpack has also won two of the last three, and seven of the last ten games between the schools.  It is annually anticipated as the biggest college football game in the state of North Carolina.
Answer: Mack Brown