Question: Which coach represented the University of Tulsa and served as quarterbacks coach?

full_context: Document 1: Steve Kragthorpe: Steven Jon Kragthorpe (born April 28, 1965) is an American football coach and former player. He is currently an administrative assistant for the Louisiana State University football program after previously serving as quarterbacks coach for the Tigers football team. He served as head coach at Louisville from 2007 to 2009, and for Tulsa from 2003 through 2006.
Document 2: 2015 Houston Cougars football team: The 2015 Houston Cougars football team represented the University of Houston in the 2015 NCAA Division I FBS football season. It was the 68th year of season play for Houston. The team was led by first-year head coach Tom Herman and played its home games at TDECU Stadium in Houston. The Houston Cougars football team is a member of the American Athletic Conference in its West Division. They finished the season 13–1, 7–1 in American Athletic play to win a share of the West Division title. Due to their head to head win over Navy, they represented the West Division in the inaugural American Athletic Championship Game where they defeated Temple to become American Athletic Conference champions. As the highest ranked team from the "Group of five", they received an automatic bid to a New Year's Six bowl. They were invited to the Peach Bowl where they defeated Florida State.
Document 3: Steve Roberts (American football): Steve Roberts (born October 13, 1964) is a former American football coach. He served as the head football coach at Southern Arkansas University from 1994 to 1999, at Northwestern State University from 2000 to 2001, and at Arkansas State University from 2002 to 2010, compiling a career college football record of 92–98–1. After leaving Arkansas State, he became the athletic director for the Cabot, Arkansas School District in July 2011.
Document 4: Kevin Steele: Kevin Steele (born May 17, 1958) is an American football coach and former player. He is the current defensive coordinator for Auburn Tigers. Prior to that, he was the defensive coordinator at LSU and coached inside linebackers for the football team at Alabama. Previously, he was the defensive coordinator at Clemson University from 2009 until early 2012. From 1999 to 2002, Steele served as the head football coach at Baylor University, compiling a record of 9–36 overall and 1–31 in the Big 12 Conference.
Document 5: Steve Campbell (American football): Steve Campbell (born April 11, 1966) is an American college football coach and former player. He is currently the head football coach at the University of Central Arkansas, a position he has held since December 2013. Campbell has previously served in the same capacity at Delta State University from 1999 to 2001, as well as at two National Junior College Athletic Association (NJCAA) institutions — Southwest Mississippi Community College (1997–1998) and Mississippi Gulf Coast Community College (2004–2013). He has been involved with three National Championship winning teams — first as a NCAA Division II player in 1987, then as a D-II head coach in 2000 and lastly as a junior college head coach in 2007.
Document 6: 2005 Oklahoma Sooners football team: The 2005 Oklahoma Sooners football team represented the University of Oklahoma in the 2005 NCAA Division I-A football season, the 111th season of Sooner football. The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his seventh season as head coach. They played their home games at Gaylord Family Oklahoma Memorial Stadium in Norman, Oklahoma. They were a charter member of the Big 12 Conference.
Document 7: Steve Sarkisian: Stephen Ambrose Sarkisian (born March 8, 1974) is an American football coach and former player who is currently the offensive coordinator for the Atlanta Falcons of the National Football League (NFL). He has served as the head football coach of the University of Washington from 2009 to 2013 and at the University of Southern California (USC) from 2014 to 2015. He played college football as a quarterback at Brigham Young University (BYU) and professionally with the Saskatchewan Roughriders of the Canadian Football League (CFL).
Document 8: 2016 Tulsa Golden Hurricane football team: The 2016 Tulsa Golden Hurricane football team represented the University of Tulsa in the 2016 NCAA Division I FBS football season. The Golden Hurricane played their home games at Skelly Field at H. A. Chapman Stadium in Tulsa, Oklahoma, and competed in the West Division of American Athletic Conference (AAC). They were led by second-year head coach Philip Montgomery. They finished the season 10–3, 6–2 in America Athletic play to finish in second place in the West Division. They were invited to the Miami Beach Bowl where they defeated Central Michigan.
Document 9: 2015 Oklahoma Sooners football team: The 2015 Oklahoma Sooners football team represented the University of Oklahoma in the 2015 NCAA Division I FBS football season, the 121st season of Sooner football. The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his 17th season as head coach. They played their home games at Gaylord Family Oklahoma Memorial Stadium in Norman, Oklahoma. They were a charter member of the Big 12 Conference.
Document 10: Steve Clarkson: Steven Levert "Steve" Clarkson (born October 31, 1961) is an American football coach. Based in Pasadena, California, he is considered a top quarterback coach. Clarkson has tutored Ben Roethlisberger, Brett Hundley, Matt Leinart, J. P. Losman, Gino Torretta, Matt Barkley, Tim Tebow, Josh Freeman, and Jimmy Clausen, among others. Clarkson is also known for helping to get offers for David Sills from University of Southern California and Tate Martell from the University of Washington at ages of 13. David Sills currently attends West Virginia University and Tate Martell has committed to Ohio State University.
Document 11: Lon Kruger: Lonnie Duane Kruger (born August 19, 1952) is an American college and professional basketball coach who is currently the men's basketball head coach of the University of Oklahoma. Kruger played college basketball for Kansas State University. He has served as the head coach of the University of Texas–Pan American, Kansas State, the University of Florida, the University of Illinois, and the University of Nevada, Las Vegas, as well as the Atlanta Hawks of the National Basketball Association (NBA).
Document 12: Tulsa Golden Hurricane football: The Tulsa Golden Hurricane football program represents the University of Tulsa in college football at the NCAA Division I Football Bowl Subdivision (FBS) level. Tulsa has competed in the American Athletic Conference (The American) since the 2014 season and was previously a member of Conference USA (C-USA). The team is currently led by head coach Philip Montgomery. Tulsa plays its home games at Skelly Field at H. A. Chapman Stadium in Tulsa, Oklahoma. The University of Tulsa has the smallest undergraduate enrollment of all schools that participate at the FBS level.
Document 13: 2005 Tulsa Golden Hurricane football team: The 2005 Tulsa Golden Hurricane football team represented the University of Tulsa in the 2005 NCAA Division I-A football season. The team's head coach was Steve Kragthorpe. They played home games at Skelly Stadium in Tulsa, Oklahoma and competed in the West Division of Conference USA.
Document 14: Charlie Strong: Charles Rene Strong (born August 2, 1960) is an American football coach and former player. Strong is currently the head coach at the University of South Florida. Strong held numerous assistant coaching positions before becoming a head coach at the University of Louisville in 2010. During his four-year stint at Louisville, he led the Cardinals to a 37–15 record and reached a bowl game each season, including the 2013 Sugar Bowl. After the 2013 season he left Louisville to become the head coach at the University of Texas. He was fired by Texas after the 2016 season with a 16–21 record in three seasons. One month after leaving Texas, Strong was hired at South Florida.
Document 15: 2005 Texas Longhorns football team: The 2005 Texas Longhorns football team represented the University of Texas at Austin during the 2005 NCAA Division I-A football season, winning the Big 12 Conference championship and the national championship. The team was coached by Mack Brown, led on offense by quarterback Vince Young, and played its home games at Darrell K. Royal – Texas Memorial Stadium.
ground_truth: Steve Kragthorpe