Coaches Association Hall of Fame. Professional career Dallas Cowboys Lett was selected by the Dallas Cowboys in the seventh round (173rd overall) of the 1991 NFL Draft. As a rookie, he was placed on the injured reserve list with a lower back problem on August 27. He was re-activated on November 21 and played as a reserve defensive tackle during the last five games of the season and in the playoffs. After entering the league at 6'6" and 260 pounds, by the end of his rookie year, he had put on 16 more pounds. In his second season, he blossomed into a key player in the Cowboys' defensive line rotation and his teammates nicknamed him "Big Cat" in reference to his agility. Playing mainly as a defensive right tackle in passing situations, he finished the regular season with 19 quarterback pressures (tied for second on the team) and four passes deflected (led the team). In the postseason, he was one of the defense's best players, tying for the team lead with two tackles for losses and leading the team with three forced fumbles. In Super Bowl XXVII, he nearly set the record for the longest fumble return in Super Bowl history (64 yards). However, Lett prematurely began to celebrate and the ball was knocked out of his hand by Bills receiver Don Beebe which resulted in a touch back. He also sacked Frank Reich on the game’s final play. In 1993, he fractured his right ankle in the third game of the season, re-injuring a fracture suffered during offseason workouts. Upon his return after missing 5 games, he played the four positions along the defensive line at different times. After playing in 11 contests, he led all defensive linemen in passes deflected (4) for the second straight season. In the divisional playoff game against the Green Bay Packers, he registered 6 tackles (1 for loss), 2 passes deflected (one was intercepted), 3 quarterback pressures and recovered a fumble. In Super Bowl XXVIII, besides having 6 tackles, he forced Thurman Thomas to fumble in the third quarter, leading to a James Washington 46 yards return for a touchdown, which tied the score at 13-13 and changed the momentum of the game. In 1994, he started all 16 contests and was named to his first Pro Bowl after finishing with 68 tackles, 4 sacks and 26 quarterback pressures (second on the team).