Question: The athlete Doug Scovil was credited with developing played with the NFL for how many seasons?

Context articles: Randall Cunningham
Michael Holton
List of PAOK FC seasons
Anders Carlsson
List of pre-NHL seasons
Fred Campbell (basketball)
Bob Adams (American football)
Doug Scovil
Derby di Sicilia
Children's Theatre Company

Randall Wade Cunningham (born March 27, 1963) is a former American football quarterback in the National Football League (NFL).
 He played in the NFL for 16 seasons, primarily with the Philadelphia Eagles.
 Cunningham is also known for his tenure with the Minnesota Vikings.
 He is the younger brother of former college and professional football player Sam Cunningham and the father of Randall Cunningham II and world champion high jumper Vashti Cunningham.
 Cunningham was inducted into the College Football Hall of Fame in 2016.
Michael David "Mike" Holton (born August 4, 1961) is a retired American professional basketball player, and current television studio analyst for the Portland Trail Blazers of the NBA.
 Born in Seattle, Washington, he played college basketball at UCLA from 1979 to 1983, and was selected in the third round of the 1983 NBA Draft by the Golden State Warriors, but began his NBA career with the Phoenix Suns in 1984–85.
 Holton, a 6'4" 185 lb guard, also spent his career with the Chicago Bulls, Portland Trail Blazers, and Charlotte Hornets.
 He also played in the CBA for four different teams in as many seasons from 1983 to 1992.
 He started 60 games for the expansion Charlotte Hornets.
 Holton briefly played for Great Taste Coffee in the Philippine Basketball Association.
PAOK FC is a football club based in Thessaloniki, that competes in Superleague, the most senior football league in Greece.
 The club was formed on 20 April 1926 by Greek refugees from Constantinople, and played their first official encounter on 12 December 1926, prevailing 3-1 over Nea Genea.
 Initially PAOK played against other local clubs in Macedonia FCA (EPSM).
 In 1927-28, PAOK took part in the Macedonia FCA A’ League for the first time.
 In 1930-31 they qualified for their maiden participation in the Panhellenic Championship.
 From 1930 to 1959 PAOK played in the Macedonia FCA and participated many seasons to the Panhellenic Championship.
Anders "Masken" Carlsson (born 25 November 1960 in Gävle, Sweden) is a Swedish retired ice hockey center who played parts of three seasons with the New Jersey Devils in the National Hockey League and many seasons in the Elitserien for Brynäs IF, Södertälje SK, VIK Västerås HK and Leksands IF.
 In addition to playing in the 1987 Canada Cup, he represented Sweden six times at the World Championships, winning gold medals in 1987 and 1991, and silver medals in 1986, 1990 and 1997.
 He is currently an amateur scout for the Colorado Avalanche He is currently General Manager of SHL-team Rögle BK.
Prior to the first season of the National Hockey League (NHL), which commenced on December 19, 1917, there had been many seasons of ice hockey played by various amateur and professional leagues, often held contemporaneously, going back to the 1880s, to which the NHL can trace its roots.
 Below is a list of pre-NHL seasons by ice hockey leagues that are precursors of the National Hockey League.
Fred Gaines Campbell (August 8, 1920 – December 3, 2008) was an American professional basketball player and coach as well as minor league baseball player.
 He played in the National Basketball League for the Detroit Gems and Detroit Vagabond Kings.
 While playing for the Gems he served as the head coach during the second half of the season after coach Joel Mason resigned.
 In many seasons with the Vagabond Kings, except for the only one in which the franchise played in the NBL (the rest of the years they were independent), Campbell also served as a player-coach.
 In two seasons as an NBL player, Campbell averaged 5.8 points per game.
Robert Bruce "Bob" Adams (born August 15, 1946) is a former professional American football tight end in the National Football League (NFL) and a spokesperson for the Church of Scientology International.
 He attended El Camino High School during the 1960s, and was encouraged by a coach at the College of San Mateo to play football.
 He played for a single season at the college, during 1966, while participating in other sports at the school including track-and-field and basketball.
 A former coach of the College of San Mateo, Doug Scovil, recruited Adams to the College of the Pacific, where he received a full scholarship to play football there.
 By 1968, he was captain of the team's offense at the school.
Doug Scovil (June 30, 1927 – December 9, 1989) was an American football player and coach.
 His served as the head football coach at the University of the Pacific in Stockton, California from 1966 to 1969 and at San Diego State University from 1981 to 1985, compiling a career college football record of 45–51–3.
 Following his stint as head coach for the San Diego State Aztecs, Scovil worked as the quarterbacks coach for the Philadelphia Eagles of the National Football League (NFL), where he was credited with developing Randall Cunningham, until his death from a heart attack at Veterans Stadium during the 1989 season.
 In memory of Scovil's passing, the Eagles marked their helmets with black electrical tape for the rest of the season.
The Derby di Sicilia or Sicilian Derby in English, is a local derby between Italian football clubs Calcio Catania and U.S. Città di Palermo.
 Catania and Palermo are the two main cities on the island of Sicily, and the teams are fierce rivals.
 However, they have seldom played each other within the Italian football league system, because in many seasons they have played in separate divisions of the league.
 The first time the Sicilian derby took place in the context of league football was on November 1, 1936, at Palermo in Serie B level; it ended in a 1–1 draw.
 The Sicilian derby has been played 10 times in Serie A: Catania leading their rivals by 5 victories to Palermo's 4; the other occasion was drawn.
 The teams have also met in local Sicilian competitions, and friendly matches.
The Children's Theatre Company (formerly known as The Moppet Players from 1961 to 1965) is a regional theatre established in 1965 in Minneapolis, Minnesota, specializing in plays for families, young audiences and the very young.
 The theatre is the largest theatre for multigenerational audiences in the United States and is the recipient of 2003 Tony Award for Outstanding Regional Theatre.
 The founding is credited to John Clark Donahue and Beth Linnerson.
 Many productions are adaptations from children's literature including Pippi Longstocking, The 500 Hats of Bartholomew Cubbins, "Cinderella", How The Grinch Stole Christmas, A Year with Frog and Toad and "Alice in Wonderland" that have been in the company's repertoire for many seasons.
 Among their early premiere productions was Richard Dworsky's musical version of "The Marvelous Land of Oz", which was one of several productions to be issued on video in the early 1980s.
 The casts themselves are a mix of adult and young adult performers.