Question: Who was a linebacker for four NFL teams between 1985-1996 and was also head coach of the Oakland raiders in 2015?
Context: Matthew A. "Matt" Dyson (born August 1, 1972) is an American football coach and a former player.  He is currently the head coach of the George Mason University football team.  He played college football as an outside linebacker for the University of Michigan from 1991 to 1994.  He was selected as a first-team All-Big Ten linebacker in 1992 and the defensive player of the game in the 1994 Holiday Bowl.  He was selected by the Oakland Raiders in the fifth round of the 1995 NFL Draft and appeared in four games during the 1995 Oakland Raiders season. Kerwin Douglas Bell (born June 15, 1965) is an American college and professional football coach and former player who was a quarterback in the National Football League (NFL), World League of American Football (WLAF) and the Canadian Football League (CFL) for fourteen seasons in the 1980s, 1990s and early 2000s.  Bell played college football for the University of Florida, and thereafter, he played professionally for four NFL teams, one WLAF team and four CFL teams.  He was the head coach of the Jacksonville Dolphins football team of Jacksonville University from 2007 to 2015.  He was announced as the head coach of the Valdosta State Blazers football team of Valdosta State University on January 22, 2016. Joseph John Bugel (born March 10, 1940) is an American former football coach and college player who held a variety of coaching positions at the college and professional levels of the sport over his 46-year career.  Although he was twice a head coach in the National Football League (NFL), he is widely acknowledged as one of the great offensive line coaches in NFL history, most notably for the Washington Redskins from 1981 to 1989 and from 2004 to 2009.  He served as offensive line coach or assistant for the Detroit Lions 1975–76, the Houston Oilers 1977–80, Washington Redskins 1981–89, Oakland Raiders 1995–96, San Diego Chargers 1998–2001, and the Redskins again since 2004.  He was also head coach of the Phoenix Cardinals (1990–93) and Oakland Raiders (1997).  As head coach of the Phoenix Cardinals, and the Oakland Raiders, Bugel compiled a record of 24 wins against 56 losses over five full seasons.  He is best known for the creation of "The Hogs"—the nickname he penned for his offensive line unit during the Redskins' 1982 training camp.  Bugel is known by the nickname "Boss Hog". Thomas Lee Cable, Jr. (born November 26, 1964) is an American football coach currently working as the offensive line and assistant head coach of the Seattle Seahawks of the National Football League (NFL).  He played college football at the University of Idaho and was on the replacement team for the Indianapolis Colts during the 1987 NFL players' strike.  After being an assistant coach for several college football teams, as well as head coach at Idaho, Cable became an offensive line coach for the Atlanta Falcons and Oakland Raiders of the NFL before serving as head coach for the Raiders from 2008 to 2010. John Henry Mills (born October 31, 1969 in Jacksonville, Florida) was an American football running back, linebacker and tight end in the NFL for the Houston Oilers, Oakland Raiders and the Minnesota Vikings.  Mills was selected to the Pro Bowl after the 1996 season as a special teams captain.  He played college football at Wake Forest University where he was an Alpha Sigma Phi.  Mills is currently an inside linebacker coach for Clear Lake High School, in Houston, Texas.  John Henry Mills was a four-year letterman at tight end under head coach Bill Dooley.  Mills is Wake's all-time leading receiver among tight ends with 142 receptions for 1,652 yards.  A three-time All-ACC first-team selection from 1990 through 1992, he finished third in the ACC in receptions in 1990 with 46 and led the league in 1991 with 51.  Against Duke in 1990, he caught 12 passes for 230 yards, still the second-most receiving yards in a game in school history.  Mills is also announced in the 2008 ACC Football Championship Game Legends Class.  A fifth-round pick of the Houston Oilers in the 1993 NFL Draft, Mills played seven seasons in the NFL with Houston, Oakland and Minnesota.  In 1996, while with the Oilers, he earned All-Pro honors as a special teams player. 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. The 2017 Oakland Raiders season is the 58th overall season of the Oakland Raiders franchise, the franchise's 48th season in the National Football League, their 24th season since their return to Oakland, and the third under head coach Jack Del Rio.  The Raiders are looking to win their first AFC West title since 2002 and the Super Bowl for the first time since 1983, when the club was still in Los Angeles.  The Raiders began the season on September 10 at the Tennessee Titans and will finish the season December 31 at the Los Angeles Chargers.  The Raiders, as they did in 2016, will play one home game in Mexico City, this time against the New England Patriots. Gil Haskell (born September 24, 1943) is a long time National Football League (NFL) coach and the former offensive coordinator of the Seattle Seahawks.  He began his career in the NFL as a ball boy with the San Francisco 49ers while his uncle Dr. William O’Grady was a part owner of the franchise.  Coach Haskell grew up in St. Brendan's Parish in San Francisco, graduated from St. Ignatius High School in 1961, played at San Francisco State, and then was head coach at St. Ignatius from 1973–1977.  Haskell then left for USC, spending 5 seasons as an assistant coach.  He broke into the NFL as a coach in 1983 with the Los Angeles Rams, coaching special teams, running backs and tight ends for 9 seasons.  In 1992, he joined the Green Bay Packers where he became part of Mike Holmgren's staff for the first time as a running back coach and wide receiver coach.  When Holmgren left Green Bay for the Seattle Seahawks in 1998 Haskell accepted the Offensive Coordinator position with the Carolina Panthers.  The next season, he reunited with Holmgren in Seattle in the same role.  He has indicated that he would like to be a head coach in the NFL and even launched a low key campaign for the Oakland Raiders position when the Raiders fired Norv Turner after the 2005 season.  That position was eventually filled with the hiring of Art Shell. Jack Louis Del Rio Jr. (born April 4, 1963) is head coach of the Oakland Raiders of the National Football League (NFL).  A linebacker for four NFL teams between 1985–1996, he played both football and baseball for the University of Southern California Trojans. Connor Cook (born January 29, 1993) is an American football quarterback for the Oakland Raiders of the National Football League (NFL).  He played college football for the Michigan State Spartans and was their starting quarterback from 2013 to 2015.  He holds the record for most career wins at Michigan State.  Cook was selected in the fourth round of the 2016 NFL Draft by the Oakland Raiders.  After initially serving as the third-string backup to Derek Carr and Matt McGloin, Cook played in his first NFL game in the Raiders' last regular season game of the 2016 NFL season after Carr and McGloin suffered injuries.  Following this, he was named the starter for the Raiders' playoff game against the Houston Texans and became the first quarterback in NFL history to make his first career start in a playoff game.
Answer: Jack Del Rio