Question: The first walk-on true freshman quarterback to start a football season opener at a BCS school beat out an incumbent starter who later transferred to what university?

Context paragraphs:
Vad Lee: Lavaedeay Monlique (Vad) Lee (born April 27, 1993) is an American football quarterback for the Columbus Lions of the National Arena League (NAL).  Lee went to Hillside High School (Durham, North Carolina).  Lee is considered to be a skilled dual-threat, athletic quarterback who redshirted as a true freshman at Georgia Tech.  Lee played in several games during his redshirt freshman season in 2012 as a backup to starting Georgia Tech quarterback Tevin Washington, and Lee was the Yellow Jackets' starting quarterback during 2013 season.  Lee went to Georgia Tech after a successful prep career in North Carolina.  In January 2014, Lee transferred to James Madison University.

1985 Oklahoma Sooners football team: The 1985 Oklahoma Sooners football team represented the University of Oklahoma in the college football season of 1985–1986.  This year was Barry Switzer's 13th season as head coach.  The Sooners ended this season with 11 wins and a sole loss coming to the Miami Hurricanes in Norman, in a game in which the Sooners lost starting quarterback Troy Aikman for the season.  The Sooners were forced to place their trust in lightning-quick true freshman quarterback Jamelle Holieway and a physical defense featuring three All-Americans, who led them to a Big 8 Conference title and a national championship.  This was Oklahoma's sixth national championship and 34th conference championship in school history.

Josh Rosen: Joshua Ballinger Lippincott Rosen (born February 10, 1997) is an American football quarterback who plays college football for the UCLA Bruins.  He was a top-rated recruit coming out of high school, where he was named a 2014 "USA Today" High School All-American.  The first true freshman to ever start at quarterback for the Bruins in a season opener, he was named a Freshman All-American and was honored as the Pac-12 Conference Freshman Offensive Player of the Year in 2015.

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.

Jarrett Stidham: Jarrett Ryan Stidham (born August 8, 1996) is an American football quarterback for Auburn University.  He began his college football career at Baylor University.  After a season-ending injury to starting quarterback Seth Russell, Stidham started three games as a true freshman.  After his freshman year, he transferred to McLennan Community College, where he did not play football in his one year at the school.

Danny Etling: Daniel Patrick Etling (born July 22, 1994) is an American football quarterback for the LSU Tigers football team.  He arrived at LSU after transferring out of Purdue, where he was a true freshman for the 2013 team.  He is a right-handed quarterback known for his strong arm.  He was a 4-star high school prospect as a senior.  He served the first 4 games of the 2013 season as the backup quarterback for Purdue.  He was named Purdue's starting quarterback during their 5th game, started every game for the rest of the 2013 season.  Elting won the quarterback battle to be the 2014 starter as well, but was later replaced by Austin Appleby after 5 games.

Jeff Godfrey: Jeffrey Godfrey IV (born January 1, 1992) is a former American football quarterback and wide receiver.  Godfrey played for the University of Central Florida Knights.  He led the Knights to the Conference USA Championship in his freshman year (2010), becoming the first true freshman quarterback to win an FBS conference championship game.

2010 Colorado State Rams football team: The 2010 Colorado State Rams football team represented Colorado State University in the 2010 NCAA Division I FBS football season.  They finished the season with a record of 3–9 (1–7 MWC).  The team was coached by third year head coach Steve Fairchild and played their home games in Hughes Stadium in Fort Collins, Colorado.  They played in the Mountain West Conference.  On August 17, true freshman Pete Thomas was named the starting quarterback, making him the first freshman starter since Caleb Hanie in 2004.

John O'Korn: John August O'Korn (born November 22, 1994) is an American football quarterback for the Michigan Wolverines.  After attending St. Thomas Aquinas High School in Fort Lauderdale, Florida, where he led his team to the 2012 FHSAA 7A state high school title, O'Korn chose to attend the University of Houston.  He began as the starting quarterback for Houston during the 2013 season as a true freshman after teammate David Piland suffered career-ending injuries.  After throwing 3,117 yards and 28 touchdowns as a freshman and honored with the American Athletic Conference Freshman Player of the Year, he lost his starting position after starting the first five games in the 2014 season.  On February 5, 2015, he announced his plans to transfer to the University of Michigan.

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.

Supporting paragraphs: Baker Mayfield Trevor Knight
Answer: Texas A&M University