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MIAMI, FL - JANUARY 17: Head coach Tom Landry of the Dallas Cowboys watches the action from the sidelines during Super Bowl V on January 17, 1971 against the Baltimore Colts at the Orange Bowl in Miami, Florida. (Photo by Tony Tomsic/Getty Images)

MIAMI, FL - JANUARY 17:  Head coach Tom Landry of the Dallas Cowboys watches the action from the sidelines during Super Bowl V on January 17, 1971 against the Baltimore Colts at the Orange Bowl in Miami, Florida. (Photo by Tony Tomsic/Getty Images)