Question: Steven Levert "Steve" Clarkson, is an American football coach, Clarkson has tutored Ben Roethlisberger, an American football quarterback for which sports organization, of the National Football League (NFL)?

full_context: Document 1: Jeremy Shockey: Jeremy Charles Shockey ( ; born August 18, 1980) is a former American football tight end. He was drafted by the New York Giants 14th overall in the 2002 NFL Draft. He played college football at the University of Miami.
Document 2: Ramon Foster: Ramon Foster (born January 7, 1986), nicknamed "The Big Ragu", is an American football guard for the Pittsburgh Steelers of the National Football League (NFL). He is the brother of former St Louis Rams offensive lineman Renardo Foster. He played college football at Tennessee where he played in a career total of 44 games and also earned All-SEC honors as a freshman a junior.
Document 3: 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 4: Matt Ryan (American football): Matthew Thomas Ryan (born May 17, 1985), nicknamed "Matty Ice", is an American football quarterback for the Atlanta Falcons of the National Football League (NFL). After playing college football for Boston College, Ryan was drafted by the Falcons with the third overall pick in the first round of the 2008 NFL Draft.
Document 5: Ben Roethlisberger: Benjamin Todd Roethlisberger Sr. ( ; born March 2, 1982), nicknamed Big Ben, is an American football quarterback for the Pittsburgh Steelers of the National Football League (NFL). He played college football at Miami University (Ohio), and was drafted by the Steelers in the first round (11th overall) of the 2004 NFL Draft.
Document 6: Terry Bradshaw: Terry Paxton Bradshaw (born September 2, 1948) is a former American football quarterback who played professionally in the National Football League (NFL). Since 1994, he has been a TV analyst and co-host of "Fox NFL Sunday". Bradshaw is also an actor, having participated in many television shows and films, most notably starring in the movie "Failure To Launch". He played for 14 seasons with Pittsburgh, won four Super Bowl titles in a six-year period (1974, 1975, 1978, and 1979), becoming the first quarterback to win three and four Super Bowls, and led the Steelers to eight AFC Central championships. He was inducted into the Pro Football Hall of Fame in 1989, his first year of eligibility. Bradshaw was inducted into the College Football Hall of Fame in 1996.
Document 7: Terry Shea: Terence William Shea (born June 12, 1946) is an American football coach and former player. Currently, Shea does quarterback consulting work for future NFL draft prospects. Most recently he worked with Robert Griffin III "RG3" (2nd overall pick 2012), Blaine Gabbert (10th overall pick 2011), Sam Bradford (1st overall pick 2010), Matthew Stafford (1st overall pick 2009), and Josh Freeman (17th overall pick 2009. whom Shea later brought to the Bolts in 2015). Shea also trained and developed current college quarterbacks Collin Klein (Kansas State) and Tommy Rees (Notre Dame).
Document 8: 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 9: Mike Pouncey: James Michael Pouncey (born July 24, 1989) is an American football center for the Miami Dolphins of the National Football League (NFL). He played college football for the University of Florida, was a member of a BCS National Championship team, and earned All-American honors. He was drafted by the Dolphins in the first round of the 2011 NFL Draft.
Document 10: Clayton Thorson: Clayton James Thorson is an American football quarterback. He is currently a redshirt junior and the starting quarterback for the 2017 Northwestern Wildcats football team. After redshirting in 2014, he was named the starting quarterback in 2015 and led the Wildcats to the third 10-win season in program history. As a starter for the 2016 team, he earned Academic All-Big Ten honors. Thorson was selected by ESPN.com as the seventh best high school quarterback and played in the 2014 Semper Fidelis All-American Bowl.
Document 11: James Harrison (American football): James Henry Harrison Jr. (born May 4, 1978) is an American football linebacker for the Pittsburgh Steelers of the National Football League (NFL). He played college football for Kent State University, and was signed by the Steelers as an undrafted free agent in 2002. A five-time Pro Bowl selection, Harrison has earned two Super Bowl rings with the Steelers, in Super Bowl XL and Super Bowl XLIII. Harrison also played for NFL Europe's Rhein Fire and had a brief stint with the Baltimore Ravens. He played 10 games for the Cincinnati Bengals in 2013. Soon after his season in 2013 with Cincinnati he stated that he would be retiring from the NFL, but he came out of retirement to return to the Steelers. Harrison is the Steelers' all-time sack leader, with 79.5.
Document 12: Ben Utecht: Benjamin Jeffrey Utecht (born June 30, 1981) is a former American football player and current singer. Utecht was a tight end for the Indianapolis Colts and the Cincinnati Bengals. He was signed by the Indianapolis Colts as an undrafted free agent in 2004. He played college football at Minnesota. Utecht has also played for the Cincinnati Bengals. He earned a Super Bowl ring with the Colts in Super Bowl XLI over the Chicago Bears.
Document 13: Matt Leinart: Matthew Stephen "Matt" Leinart (born May 11, 1983) is a former American football quarterback who now works as a studio analyst for Fox Sports’ college football coverage. He played college football at the University of Southern California (USC) from 2001 to 2005. He was the starting quarterback for the Trojans in 2003, 2004, and 2005. As junior in 2004, he won the Heisman Trophy. Leinart played professionally in the National Football League (NFL) for the Arizona Cardinals (2006–2009), Houston Texans (2010–2011), Oakland Raiders (2012), and Buffalo Bills (2013). Leinart signed a deal with the Pac-12 Network, making his official debut as a Studio Analyst on August 30, 2014. He is a recurring guest, via voicemail, on the Barstool Sports podcast Pardon My Take. Leinart will be inducted into the College Football Hall of Fame in 2017.
Document 14: Steve Clark (American football): Stephen Spence Clark (born August 2, 1960) is a former professional American football player who played [[defensive tackle]and offensive guard ] for five seasons for the [[Miami Dolphins]]. He also played on two state championship teams in high school which were a combined (25-1) over two years and was a five team all-American including "Parade Magazine", he was also named Most Valuable Player of the state of Utah. At the University of Utah he was named two time All-WAC defensive tackle, Defensive Most Valuable Player of the Western Athletic Conference and First Team All-American. He also played in the East-West Shrine Game and was named MVP of the Senior Bowl. After the Senior Bowl he was drafted by Don Shula and The Miami Dolphins, his second year in the NFL he played both ways in a pre-season game and Coach Shula knew he had a guy that could back up every position on the offensive and defensive line as well as long snap. He earned a starting position at right guard and played against [[William Perry (American football)|the Fridge]] when the Dolphins beat the Chicago Bears on Monday Night Football to help keep the undefeated Dolphin record intact. In the NFL, he also played on two Super Bowl teams with the Miami Dolphins and was the starting right guard before being injured. Just recently Steve was named to the top 100 greatest players in the history of the University of Utah actually being named 9th best of All-Time.
Document 15: Jon Kitna: Jon Kelly Kitna (born September 21, 1972) is an American football coach and former quarterback. After playing college football for Central Washington University, he signed with the Seattle Seahawks in 1996 and was allocated to the Barcelona Dragons of NFL Europe in 1997. He led the Dragons to a World Bowl championship, and became the starting quarterback for the Seahawks in 1998 after spending the 1997 and most of the 1998 seasons as the backup to Warren Moon. Following a four-year stint with Seattle, Kitna signed with the Cincinnati Bengals in 2001. He played for the Bengals from 2001 to 2005 as their starting quarterback, and, later, the mentor to Carson Palmer. He was a member of the Detroit Lions from 2006 to 2008, and the Dallas Cowboys from 2009 to 2011.
ground_truth: Pittsburgh Steelers