9 Nov 1997: Head coach Barry Switzer of the Dallas Cowboys gives directions during a game against the Arizona Cardinals at Texas Stadium in Irving, Texas. The Cowboys won the game 24-6. Mandatory...

...Chicago Bears takes the ball away from quarterback Danny White #11 of the Dallas Cowboys during a game at Texas Stadium on November 17, 1985 in Irving, Texas. The Bears won 44-0

...A general view of play between the Texas Longhorns and the North Carolina Tar Heels at Cowboys Stadium on December 19, 2009 in Arlington, Texas. (Photo by Ronald Martinez/Getty Images

...Longhorns center Dexter Pittman (34) fights for a rebound against the North Carolina Tar Heels at Cowboys Stadium. Mandatory Credit: Photo By Matthew Emmons-US PRESSWIRE

...1997: Running back Emmitt Smith of the Dallas Cowboys during the Cowboys 20-17 loss to the New York Giants at Giants Stadium in East Rutherford, New Jersey. Mandatory Credit: Al Bello /Allsport

...the Philadelphia Eagles during the second half of the 2010 NFC wild card playoff game at Cowboys Stadium. The Cowboys defeated the Eagles 34-14. (R)Dec 14, 2008; Indianapolis, IN, USA; Indianapolis Colts...

...the Dallas Cowboys holds up a silver football emblematic of his breaking the NFL all time rushing record after their game versus the Seattle Seahawks on October 27, 2002 at Texas Stadium in Irving...

...Browns runs with the ball during a game on October 17, 1965 against the Dallas Cowboys at Municipal Stadium in Cleveland, Ohio

Feb 7, 1993; Honolulu, HI, USA; FILE PHOTO; Dallas Cowboys receiver #88 MICHAEL IRVIN celebrates his touchdown during the 1993 Pro Bowl at Aloha Stadium. Mandatory Credit: Photo By US PRESSWIRE © Copyright

...a second quarter touchdown against the Philadelphia Eagles during the 2010 NFC wild card playoff game Cowboys stadium. Mandatory Credit: Matthew Emmons-US PRESSWIRE 2- Oct 4, 2009; Seattle, WA, USA; Texas Rangers starting...

...USA; NFC quarterback Tony Romo (9) of the Dallas Cowboys throws a pass during the second half of the 2010 Pro Bowl at Sun Life Stadium. Mandatory Credit

...USA; NFC quarterback Tony Romo (9) of the Dallas Cowboys in the huddle during the second half of the 2010 Pro Bowl at Sun Life Stadium

...intended for NFC receiver Miles Austin (19) of the Dallas Cowboys during the first half of the 2010 Pro Bowl at Sun Life Stadium

...while defended by NFC cornerback Mike Jenkins of the Dallas Cowboys during the second half of the 2010 Pro Bowl at Sun Life Stadium. Mandatory Credit: Matthew Emmons-US PRESSWIRE

...at Land Shark Stadium on December 27, 2009 in Miami, Florida. (Ronald C. Modra/Sports Imagery/Getty Images) 27 DECEMBER 2009: Washington Redskins linebacker London Fletcher in action against the Dallas Cowboys. The Cowboys defeated...