Former NFL coach Sid Gillman holds his bust after being officially inducted into the Pro Football Hall of Fame, in this July 30, 1983 photo in Canton, Ohio. (AP Photo)

San Diego Chargers coach Sid Gillman is shown on the sidelines of a San Diego Chargers game in the 1960's. Gillman said the key to his offensive philosophy was spreading the field. There were many aspects of the offense Bill Walsh used that we used with the Chargers in the '60s,'' he said.If you watch Dick Vermeil, he covers the field vertically and horizontally. That causes some problems defensively.''(AP Photo/Denis Poroy)

San Diego Chargers head coach Sid Gillman, shown in this 1964 photo, died early Friday, Jan. 3, 2003. Gillman, the Hall of Fame football coach who was one of the masterminds behind the West Coast offense used by several of the NFL's best teams was 91. (AP Photo)

Los Angeles Chargers Hall of Fame head coach Sid Gillman (with assistant coach and fellow Hall of Famer Al Davis sitting behind him) talks to Houston Oilers owner Bud Adams following the AFL Championship Game, a 24-16 Oilers victory on January 1, 1961, at Jeppesen Stadium in Houston, Texas. Note the flask disguised like a camera that Adams wears around is shoulder. (Photo by Lou Witt/NFL)

San Diego Chargers head coach Sid Gillman congratulates flanker Lance Alworth (19) and quarterback John Hadl (21) following a 31-14 victory over the Houston Oilers on October 3, 1965, at Balboa Stadium in San Diego, California. (Photo by Charles Aqua Viva/NFL)

LOS ANGELES - DECEMBER 01: Los Angeles Rams public relations director Pete Rozelle meets with head coach Sid Gillman during the 1957 season in Los Angeles, California. (Photo by NFL Photos/Getty Images)

San Diego Chargers quarterback Tobin Rote (18) talks to Hall of Fame head coach Sid Gillman during the AFL Championship Game, a 20-7 loss to the Buffalo Bills on December 26, 1964, at War Memorial Stadium in Buffalo, New York. Rote retired after the game after 13 seasons. (Photo by Robert L. Smith/NFL)

Meeting announcing the sale of the San Diego Chargers from Barron Hilton to Samuel Schulman, who became the new Chairman of the Board, and Eugene Klein (right), the new President. Pictured with them is Sid Gillman, the Chargers head coach and general manager, who was inducted into the Pro Football Hall of Fame class of 1983. (Photo by Charles Aqua Viva/NFL)

San Diego Chargers head coach Sid Gillman, center, directs American Football League All-Star and Kansas City Chiefs tackle Jim Tyrer (77) during a morning work out for a game against the Buffalo Bills in this Jan 11, 1965 photo. (AP Photo)

LOS ANGELES, CA - AUGUST 1: Head coach Sid Gillman of the Los Angeles Rams poses for a photo with linebackers Dick Daugherty #50 and Bob Dougherty #57and defensive tackle Art Hauser #65 and center John Houser #63 on August 1, 1957 in Los Angeles, California. (Photo by Pro Football Hall of Fame/NFL Photos/Getty Images)

SAN DIEGO, CA - SEPTEMBER 19: Head coach Sid Gilman of the San Diego Chargers congratulates running back Mike Garrett #20 after he scored against the Kansas City Chiefs at San Diego Stadium on September 19, 1971 in San Diego, California. The Chargers defeated the Chiefs 21-14. (Photo by NFL Photos/Getty Images)

Head coach Sid Gillman of the San Diego Chargers watches his team in a 20-7 loss to the Buffalo Bills in the 1964 AFL Championship Game on December 26, 1964 at War Memorial Stadium in Buffalo, New York. (Photo by Robert L. Smith/NFL)