Dallas Cowboys Head Coach Tom Landry in 1982. (Photo by Al Messerschmidt/NFL Photos)

ST. PETER - AUGUST 1: Defensive back Tom Landry #49 of the New York Giants poses for a publicity shot during training camp at Gustavus Adolphus College on August 1, 1953 in St. Peter, Minnesota. (Photo by NFL Photos)

The New York Giants Coaches, 1957, back row from left, Tom Landry, assistant coach, Jim Lee Howell, Head Coach, Ken Kavenaugh, assistant coach, front row from left, Vince Lombardi, assistant coach, John Dell Isola, assistant coach. (Photo by NFL Photos)

Defensive coordiantor Ernie Stautner and head coach Tom Landry of the Dallas Cowboys on the sidelines in a 20 to 13 win over the Los Angeles Rams on September 3, 1984 at Anaheim Stadium in Anaheim, California. (Photo by Diane Johnson/NFL Photos)

Dallas Cowboys along with head coach Tom Landry celerbrate after a 24-3 win over the Miami Dolphins in Super Bowl VI on January 16, 1972 at Tulane Stadium. (Photo by Vernon Biever/NFL Photos)

Dallas Cowboys Hall of Fame coach Tom Landry on the sidelines of a 17-10 win over the San Francisco 49ers on January 3, 1971 at Candlestick Park in San Francisco, California. (Photo by Darryl Norenberg/NFL Photos)

Tom Landry, Dallas Cowboys head coach talks with Hall of Fame quarterback Roger Staubach during a 30-28 win over the San Francisco 49ers on December 23, 1972 at Candlestick Park in San Francisco, California. (Photo by George Long/NFL Photos)

EAST RUTHERFORD, NJ - SEPTEMBER 9: Head coach Tom Landry holds his play card during a game against the New York Giants at Giants Stadium on September 9, 1984 in East Rutherford, New Jersey. The Giants defeated the Cowboys 28-7. (Photo by Jim Turner/NFL Photos)

Pro Football Hall of Fame inductees Bob St. Clair, Jack Lambert, Franco Harris, Tom Landry, Bob Griese, Ted Hendricks, and Buck Buchanan at the NFL Pro Bowl, a 27-21 NFC victory on February 4, 1990, at Aloha Stadium in Honolulu, Hawaii. (Photo by NFL Photos)

LOS ANGELES - JANUARY 4: Head coach Tom Landry of the Dallas Cowboys watches from the sideline against the Los Angeles Rams in the 1975 NFC Championship Game at the Los Angeles Memorial Coliseum on January 4, 1976 in Los Angeles, California. The Cowboys defeated the Rams 37-7. (National Football League)

San Francisco 49ers head coach Bill Walsh and Dallas Cowboys head coach Tom Landry talk before an NFL game, August 1987 in San Francisco. (AP Photo/Greg Trott)

Dallas Cowboy's coach Tom Landry, left, and player Ed "Too Tall" Jones, smile as they try on helmets borrowed from a couple of London "Bobbies' during a training session in London in ths July 28, 1986 photo. The Cowboys were preparing to play the Chicago Bears. Landry's death Saturday night, Feb. 12, 2000, has once again spurred reflection on his legacy. After dusting off the old stories and statistics, his accomplishments are even more impressive today. His 270 victories are third-most inNFL history. His teams reached five Super Bowls, winning two, and they had a winning record for 20 straight seasons. (AP Photo/Gerald Penny)

Dallas Cowboys head coach Tom Landry watches his troops during workout at London?s Crystal Palace sports complex in London on Friday, August 1, 1986. Landry and the Cowboys face the Chicago Bears in Sunday?s American Bowl 86 game at London's Wembley Stadium. (AP Photo/Ron Heflin)

Former Dallas Cowboys coach Tom Landry is inducted into the Pro Football Hall of Fame in Canton, Ohio, Saturday, Aug. 4, 1990. Landry coached the Cowboys for 29 seasons, appearing in a record five Super Bowls and winning two championships. (AP Photo/Jeff Glidden)

Former Dallas Cowboys coach Tom Landry walks past present coach Jimmy Johnson, left, after being inducted into the Cowboy?s Ring of Honor during halftime of the cowboy?s game against the New York Giants on Sunday, Nov. 7, 1993 in Irving, Texas. (AP Photo/David J. Phillip)

Former Dallas Cowboys coach Tom Landry waves to fans as he is escorted off the field by cheerleader Dorie Braddy after being inducted into the Cowboys Ring of Honor during halftime in Irving, Texas, Nov. 7, 1993. The Cowboys defeated the New York Giants 31-9. (AP Photo/David J. Phillip)

Pro Football Hall of Fame inductee Tom Landry at the NFL Pro Bowl, a 27-21 NFC victory on February 4, 1990, at Aloha Stadium in Honolulu, Hawaii. (National Football League)

LOS ANGELES - JANUARY 4: Head coach Tom Landry of the Dallas Cowboys watches from the sideline against the Los Angeles Rams in the 1975 NFC Championship Game at the Los Angeles Memorial Coliseum on January 4, 1976 in Los Angeles, California. The Cowboys defeated the Rams 37-7. (National Football League)

Tom Landry, right, the only head coach the Dallas Cowboys have ever had in their 16 years in the NFL, goes over a play with quarterback Roger Staubach in the Cowboys practice quarters in Dallas, Tex. on Jan. 11, 1976. Landry, who calls plays from the sidelines, has been described as everything from a football genius with a computer mind who can?t relate to his players to a warm sensitive man. (AP Photo/GS)

Defensive backfield coach Tom Landry holds ball as New York Giant defense men huddle Nov. 6, 1958 during workout at Yankee stadium in New York City. They will be called on Nov. 9 to stop the passing and running attack of the undefeated baltimore colts. From left to right are; kneeling, linebacker Harland Svare, middle guard Sam Huff and back Cliff Livingston. Standing, backs Carl Karilivacz, Jim Patton, Em Tonnell, Linebacker Bill Svoboda, back Lindon crow and landry. (AP Photo/John Lindsay)

Dallas Cowboys coach Tom Landry (R) and his wife Alicia wait in line to see the King Tut exhibition in New Orleans on Wednesday, Jan. 11, 1978. At left is Cowboys safety Cliff Harris. (AP Photo)

Tom Landry, left, coach of the Dallas Cowboys in the National Football League, goes over draft eligibles roster at the NFL draft meeting in Philadelphia on Dec. 27, 1960 with Cowboys General Manager Tex Schramm. (AP Photo)

Dallas Cowboys Hall of Fame head coach Tom Landry in 1970. (National Football League)