Question: Who is the head college football coach with the 23rd largest stadium in the world?

Context articles: Gaylord Family Oklahoma Memorial Stadium
Jeff Leiker
2007 Oklahoma Sooners football team
Glen Percy
Nyle Salmans
1968 Houston Cougars football team
Frank Johnson (American football)
Charlie Sadler
Neyland Stadium
Willie Taggart

Gaylord Family - Oklahoma Memorial Stadium, also known as Owen Field or The Palace on the Prairie, is the on-campus football facility on the campus of the University of Oklahoma in Norman, Oklahoma, United States, that serves as the home of the Oklahoma Sooners football team.
 The official seating capacity of the stadium, following renovations in 2015, is 86,112, making it the 23rd largest stadium in the world, the 15th largest college stadium in the United States and the second largest in the Big 12 Conference, behind Darrell K Royal–Texas Memorial Stadium at the University of Texas at Austin.
Jeff Leiker (born March 22, 1962) is a community college sports administrator and former American football player and coach.
 He is currently the athletic director at Coffeyville Community College in Coffeyville, Kansas, a position he has held since November 2007.
 From 2001 to 2007, Leiker was the head football coach at Coffeyville.
 He was the 20th head college football coach for the Fort Hays State University Tigers located in Hays, Kansas and he held that position for three seasons, from 1998 until 2000.
 His career coaching record at Fort Hays was 13 wins, 19 losses, and 0 ties.
 This ranks him 12th at Fort Hays in total wins and 13th at Fort Hays in winning percentage.
The 2007 Oklahoma Sooners football team represented the University of Oklahoma in the 2007 NCAA Division I FBS football season, the 113th season of Sooner football.
 The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his ninth season as head coach.
 They played their homes games at Gaylord Family Oklahoma Memorial Stadium in Norman, Oklahoma.
 They were a charter member of the Big 12 Conference.
William Glenn Percy (December 10, 1928 – June 23, 2014) was the 24th head college football coach for the Ottawa University Braves located in Ottawa, Kansas and he held that position for five seasons, from 1984 until 1988.
 His career coaching record at Ottawa was 21 wins, 29 losses, and 0 ties.
 This ranks him seventh at Ottawa in total wins and 18th at Ottawa in winning percentage (0.429).
 He was the head football coach at Hutchinson High School from 1968-1971.
Nyle Salmans was the 23rd head college football coach for the Ottawa University Braves located in Ottawa, Kansas and he held that position for five seasons, from 1979 until 1983.
 His career coaching record at Ottawa was 23 wins, 26 losses, and 1 tie.
 This ranks him
The 1968 Houston Cougars football team, also known as the Houston Cougars, Houston, or UH, represented the University of Houston in the 1968 college football season.
 It was the 23rd year of season play for Houston.
 The team was coached by seventh-year head coach Bill Yeoman who would later be inducted into the College Football Hall of Fame in 2001.
 The team played its home games in the Astrodome, a 53,000-person capacity stadium off-campus in Houston.
 Houston competed as a member of the NCAA in the University Division, independent of any athletic conference.
 It was their ninth year of doing so.
 At this time, Houston was on probation from the NCAA, and therefore was not eligible to compete in any post-season bowl games. Following the overall season, several players were selected for the 1969 NFL Draft.
 100 points in the November 23rd game against Tulsa remains the most points scored by a team in Division I college football history.
Frank C. Johnson was the fourth head college football coach for the University of Richmond Spiders located in Richmond, Virginia, a position he held for the 1889 season.
 His career coaching record at Richmond was 1 wins, 2 losses, and 0 ties.
 This ranks him 26th at Richmond in total wins and 23rd at Richmond in winning percentage.
 He died of a malaria or typhoid fever at the home of his father, a prominent jeweller, in 1890.
Charlie Sadler (born May 6, 1949) is an American football coach and former player.
 Sadler was the 18th head college football coach for the Northern Illinois University, a position he held from 1991 to 1995.
 His career coaching record at Northern Illinois was 18 wins, 37 losses, and 0 ties, which ranks him eighth at Northern Illinois in total wins and 17th at Northern Illinois in winning percentage.
 Sadler was the defensive ends coach at Texas Tech from 2003 to 2009.
 He previously held coaching positions at the University of Oklahoma, the University of Missouri, and Iowa State University.
Neyland Stadium (pronounced "NEE-land") is a sports stadium in Knoxville, Tennessee, United States.
 It serves primarily as the home of the Tennessee Volunteers football team, but is also used to host large conventions and has been a site for several National Football League (NFL) exhibition games.
 The stadium's official capacity is 102,455.
 Constructed in 1921, and originally called Shields-Watkins Field (the playing surface is still called that today), the stadium has undergone 16 expansion projects, at one point reaching a capacity of 104,079 before being slightly reduced by alterations in the following decade.
 Neyland Stadium is the fifth largest stadium in the United States, the sixth largest stadium in the world, and the second largest stadium in the Southeastern Conference.
 The stadium is named for Robert Neyland, who served three stints as head football coach at the University of Tennessee between 1926 and 1952.
Willie Taggart (born August 27, 1976) is the head college football coach at the University of Oregon and a former college football player.
 Taggart previously served as head coach at Western Kentucky University (WKU) from 2009 to 2012 and the University of South Florida from 2013 to 2016.
 He is the first African American head football coach at each of the three institutions.