Question: This American football coach who is partnered with John Lynch and whose father was head coach of Los Angeles Raiders is a part of which Football League?

Context paragraphs:
George Karras: George Karras (c. 1929 – March 6, 2017) was an American football player, coach, scout and executive.  He served as the head football coach at Wichita State University from 1965 to 1966, compiling a record of 4–15.  He left Wichita in 1966 to be the line coach at the University of Massachusetts Amherst.  He was previously the defensive coach there before coming to Wichita in 1964.  Karras played college football as a guard at Villanova University from 1953 to 1955.  Karras attended high school in Etna, Pennsylvania.  He later worked for the United Scouting Combine and as the chief scout in the Northeastern United States for the Denver Broncos of the National Football League (NFL).  In 1987, he was named the director of pro personnel for the NFL's Los Angeles Raiders.  Karras died on March 6, 2017.

Sports in Los Angeles: The Los Angeles metropolitan area is home to several professional and collegiate sports teams.  The Greater Los Angeles Area has nine major league professional teams: the Anaheim Ducks, the Los Angeles Angels, the Los Angeles Chargers, the Los Angeles Clippers, the Los Angeles Dodgers, LA Galaxy, the Los Angeles Kings, the Los Angeles Lakers, and the Los Angeles Rams.  Los Angeles FC will begin play as the area's tenth major team in 2018.  USC Trojans football, UCLA Bruins men's basketball, USC Trojans baseball, USC Trojans track & field, and Cal State Fullerton Titans baseball are all historically premier organizations in college sports.  Other major sports teams include UCLA Bruins Football, Los Angeles Sparks, Pepperdine Waves baseball, and formerly the Los Angeles Raiders and Los Angeles Aztecs.  Between them, these Los Angeles area sports teams have won a combined 105 Championship Titles.  Los Angeles area colleges have produced upwards of 200 National Championship Teams, primarily from USC Trojans and UCLA Bruins of the Pac-12 Conference.  The 1932 and 1984 Summer Olympics were held in Los Angeles.  In 2028 the city will host the Olympics for a third time.

Kyle Shanahan: Kyle Michael Shanahan (born December 14, 1979) is an American football coach who is currently the head coach and offensive coordinator for the San Francisco 49ers of the National Football League (NFL).  In 2008, Shanahan, at 28 years old, became the youngest coordinator in the NFL when he was promoted by the Houston Texans.  Shanahan has also coached for the Washington Redskins, Cleveland Browns, and Atlanta Falcons.  Following the Falcons' loss to the Patriots in Super Bowl LI, Shanahan accepted the head coaching position for the 49ers.  His father, Mike, is the former head coach for the Los Angeles Raiders, Denver Broncos, and Redskins.

Zeph Lee: Zephrini Lee (born June 17, 1963) is a former American football player who played three seasons in the National Football League with the Denver Broncos and Los Angeles Raiders.  He was drafted by the Los Angeles Raiders in the ninth round of the 1986 NFL Draft.  He played college football at the University of Southern California and attended Abraham Lincoln High School in San Francisco, California.  Lee was also a member of the Saskatchewan Roughriders, Sacramento Attack, Arizona Rattlers and Miami Hooters.

John McNulty (American football): John McNulty (born May 29, 1968) is an American football coach who is the tight ends coach for the Los Angeles Chargers of the National Football League (NFL).  He is a 1990 graduate of Penn State University.  Until 2012, he was a coach for the Arizona Cardinals, where he began as a wide receivers coach in early 2009 and became quarterbacks coach in 2012, until Ken Whisenhunt was fired as Head Coach.  He then became the Quarterbacks Coach for the Tampa Bay Buccaneers in 2013, until Greg Schiano was fired as Head Coach.  McNulty then joined the Tennessee Titans in 2014 as Quarterbacks Coach, and worked there until 2015 when he was not retained by Mike Mularkey after Ken Whisenhunt was fired as Head Coach.  He currently serves as the Tight Ends Coach of the Los Angeles Chargers.

Mike Shanahan: Michael Edward Shanahan (born August 24, 1952) is a former American football coach, best known as the head coach of the Denver Broncos of the National Football League (NFL) from 1995 to 2008.  During his 14 seasons with the Broncos, he led the team to consecutive Super Bowl victories in the 1998 and the 1999 Super Bowls, the former being Denver's first NFL Championship.  His head coaching career spanned a total of 20 seasons and also included stints as the head coach of the Los Angeles Raiders and Washington Redskins.

List of Oakland Raiders head coaches: There have been 20 head coaches for the Oakland Raiders of the National Football League (NFL).  The Raiders franchise was founded in Oakland, California in 1959 and became the eighth member of the American Football League (AFL) in 1960 as a replacement for the Minnesota Vikings, who had moved to the NFL.  The Raiders joined the NFL in 1970, after the AFL–NFL merger.  They played in Los Angeles between 1982 and 1995, before returning to Oakland.  As of the end of the 2015 season, the Raiders have played 852 games in a total of 56 seasons in the AFL and NFL.  In those games, two coaches have won the Super Bowl with the team: John Madden in 1976 and Tom Flores in 1980 and 1983.  One coach, John Rauch in 1966, won the AFL Championship.  Three other coaches, Art Shell, Jon Gruden and Bill Callahan, have also taken the Raiders to the playoffs.  Callahan led the Raiders to the Super Bowl.  He did this in his first year as head coach of the team.

2017 San Francisco 49ers season: The 2017 San Francisco 49ers season is the franchise's 68th season in the National Football League and their 72nd overall.  It will also be the first season under the head coach/general manager tandem of Kyle Shanahan and John Lynch.  The 49ers will look to improve on their 2–14 record from the 2016 season and attempt to clinch their first playoff berth since 2013.

Marcus Wilson (American football): Edmond Marcus Wilson (born April 16, 1968) is a former American football running back who played five seasons in the National Football League with the Los Angeles Raiders and Green Bay Packers.  He was drafted by the Los Angeles Raiders in the sixth round of the 1990 NFL Draft.  He played college football at the University of Virginia and attended Greece Olympia High School in Rochester, New York.

Darryl Byrd: Darryl Terrence Byrd (born September 3, 1960) is a former American football linebacker who played three seasons with the Los Angeles Raiders of the National Football League.  He played college football at the University of Illinois at Urbana–Champaign and attended James Logan High School in Union City, California.  He was a member of the Los Angeles Raiders team that won Super Bowl XVIII.

Supporting paragraphs: 2017 San Francisco 49ers season Kyle Shanahan
Answer: National Football League