John Butler (born April 3, 1973) is an American football coach who is currently the secondary coach for the Houston Texans.
 He previously served as defensive coordinator and secondary coach for the Penn State Nittany Lions.
 He was promoted to that role from secondary coach on January 9, 2013 over longer-tenured defensive assistants Larry Johnson and Ron Vanderlinden.
 Prior to working at Penn State, he served at a variety of colleges as an assistant coach, primarily for linebackers or special teams, including at South Carolina and Minnesota.
Jack Wright was the hero of a popular series of Victorian science fiction dime novels and story papers written by Luis Senarens, the so-called "American Jules Verne".
 A few stories are also credited to Francis W. Doughty.
 Jack appeared in original stories from in 1891 to 1896 in 120 novels.
 He first appeared in The Boys' Star Library No. 216, July 18, 1891, "Jack Wright, the Boy Inventor; or, Hunting for a Sunken Treasure".
Willie Martinez (born February 21, 1963) is an American football coach.
 He was the defensive backs coach for the University of Tennessee.
 A graduate of the University of Miami, Martinez was formerly defensive coordinator and secondary coach of the Georgia Bulldogs football team, initially working as the secondary coach from 2001 to 2005 before being promoted to defensive coordinator.
 He was fired following the 2009 season.
Greg Brown (born October 10, 1957) is currently the secondary coach for Auburn University.
 He was previously the secondary coach for Louisville Cardinals and the Missouri Tigers.
 Brown, for one season, was the secondary coach for Alabama.
 He was hired by the Crimson Tide in January 2013 after he served as defensive coordinator for Colorado.
 In 2010, he was co-defensive coordinator for the Arizona Wildcats.
 Before becoming co-defensive coordinator with Tim Kish, he previously served as secondary coach for the Colorado Buffaloes.
The Oklahoma Sooners football program is a college football team that represents the University of Oklahoma.
 The team has had 22 head coaches since organized football began in 1895.
 The Sooners have played in more than 1,200 games in its 121 seasons.
 In those seasons, eight coaches have led the Sooners to postseason bowl games: Tom Stidham, Jim Tatum, Bud Wilkinson, Gomer Jones, Chuck Fairbanks, Barry Switzer, Gary Gibbs and Bob Stoops.
 Eight coaches have won conference championships with the Sooners: Bennie Owen, Stidham, Dewey Luster, Tatum, Wilkinson, Fairbanks, Switzer and Stoops.
 Wilkinson, Switzer and Stoops have also won national championships with the Sooners.
 Stoops is the all-time leader in games coached and won, Owen is the all-time leader in years coached, while Switzer is the all-time leader in winning percentage.
 John Harts is, in terms of winning percentage, the worst coach the Sooners have had as he lost the only game he coached.
 John Blake has the lowest winning percentage of those who have coached more than one game with .353 in his 34 games.
Michael Joseph Stoops (born December 13, 1961) is an American football coach and former player.
 He is currently the defensive coordinator at the University of Oklahoma.
 Stoops served as the head football coach at the University of Arizona from 2003 until his firing during the 2011 season.
 He previously served as an assistant coach at the University of Iowa, Kansas State University, and Oklahoma.
 He is the younger brother of Bob Stoops, the former head coach of the Oklahoma Sooners football program, and the older brother of Mark Stoops, head coach at the University of Kentucky.
Bobby Jack is a clothing brand featuring a monkey character of the same name.
 Bobby Jack was created by the illustrator, Han Lim Lee in 2001.
 The clothing brand clothing was sold in clothing retailers such as JCPenney, Sears, and Macy'sThe clothing and character became popular among children and teenagers because of its "snarky messages."
Christopher Horace Hewitt (born July 22, 1974) is a former National Football League defensive back who is currently the secondary coach of the Baltimore Ravens.
 Hewitt played professionally for three seasons with the New Orleans Saints.
 After eight seasons on the coaching staff of the Rutgers Scarlet Knights football team, Hewitt was the special teams coach for the Baltimore Ravens and was the assistant secondary coach for the 2014 season.
Robert Anthony Stoops (born September 9, 1960) is a former American college football coach.
 He is the former head football coach at the University of Oklahoma, a position he held from 1999 until he announced his retirement June 7, 2017.
 During the 2000 season, Stoops led the Sooners to an Orange Bowl victory and a national championship.
Bobby Jack Wright (born December 11, 1950) is a former American football coach.
 He was the assistant head coach, co-defensive coordinator, and secondary coach under Bob Stoops at the University of Oklahoma.
 He was originally hired at Oklahoma to recruit in the state of Texas.
 Prior to arriving at Oklahoma, Wright was an assistant coach at two high schools, head coach at one, and as assistant coach at the University of North Texas.
 In 1986, he was hired by the University of Texas to serve as an assistant.
 In 1997, Wright was promoted to defensive coordinator under John Mackovic.
 Wright has more Big 12 championship rings than any other player or coach in conference history.

Question: Bobby Jack Wright was secondary coach under Bob Stoops at which university?
Answer: the University of Oklahoma