Question: What team, who was lead by Bob Stoops in 2015, current quarterback is Baker Mayfield?

Context paragraphs:
Baker Mayfield: Baker Reagan Mayfield (born April 14, 1995) is a college American football quarterback for the Oklahoma Sooners.  Mayfield began his college football career as a walk-on player for the Texas Tech Red Raiders.  He is notable for being the first walk-on true freshman quarterback to start a season opener at a BCS school.  Mayfield transferred from Texas Tech to Oklahoma following alleged scholarship issues and a lack of communication with coaches.  After sitting out the 2014 season due to NCAA transfer rules, Mayfield won the starting quarterback job in 2015 over Cody Thomas and incumbent starter Trevor Knight.

2009 Oklahoma Sooners football team: The 2009 Oklahoma Sooners football team represented the University of Oklahoma in the 2009 NCAA Division I FBS football season, the 115th season of Sooner football.  The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his 11th 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.

2000 Oklahoma Sooners football team: The 2000 Oklahoma Sooners football team represented the University of Oklahoma in the 2000 NCAA Division I-A football season, the 106th season of Sooner football.  The team was led by Bob Stoops in his second season as head coach.  They played their home games at Oklahoma Memorial Stadium in Norman.  During this season, they competed in the Big 12 Conference.

2006 Oklahoma Sooners football team: The 2006 Oklahoma Sooners football team represented the University of Oklahoma in the 2006 NCAA Division I FBS football season, the 112th season of Sooner football.  The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his eighth 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.

2012 Oklahoma Sooners football team: The 2012 Oklahoma Sooners football team represented the University of Oklahoma in the 2012 NCAA Division I FBS football season, the 118th season of Sooner football.  The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his 14th 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.

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.

Trevor Knight: Trevor Knight (born October 3, 1993) is an American football quarterback for the Atlanta Falcons of the National Football League (NFL).  He played college football for the Oklahoma Sooners and Texas A&M Aggies.  After leading Oklahoma to an 8–5 record in the 2014 season, he lost the starting job in an open quarterback competition to Texas Tech transfer Baker Mayfield prior to the 2015 season.  On January 4, 2016, it was announced that Knight would transfer to Texas A&M University.

Mike Stoops: 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.

Jackie Shipp: Jackie Vernold Shipp (born March 19, 1962) is a former American football linebacker who played in the National Football League.  Shipp also was the defensive line coach for the Oklahoma Sooners football team until his departure in the 2013 off season.  He had been on the Sooners' coaching staff since the arrival of Bob Stoops in 1999.  He was the defensive line coach at Arizona State from 2013-2015, and was the defensive line coach at the University of Missouri for part of the 2016 season.

List of Oklahoma Sooners head football coaches: 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.

Supporting paragraphs: Baker Mayfield 2015 Oklahoma Sooners football team
Answer: 2015 Oklahoma Sooners football team