The 1988 season was the Denver Broncos' 29th year in professional football and its 19th with the National Football League (NFL). The Broncos entered the season as two-time defending AFC champions and looked to advance to the Super Bowl for the third consecutive season. The Broncos were led by Dan Reeves, their Head Coach, in his eighth season at this position as well as for the team. Future Hall of Fame quarterback John Elway came into the season as the reigning MVP, the only time he won this award in his career. After losing back-to-back Super Bowls, the Broncos added future Hall of Fame running back Tony Dorsett through a trade in the offseason. There was hope that he would contribute to the ground game and help them cross the threshold to win a Super Bowl. The trade brought the 34-year-old running back to Denver for a conditional 5th-round pick (WFAA).
Despite the upgrade, having the reigning MVP, and having gone to two straight Super Bowls, the Broncos missed the playoffs and finished with an 8-8 record, second to the Seattle Seahawks in their division. Injuries, a bad run game, and a poor defense all contributed to the disappointing season (LATimes). John Elway had a down year after his MVP win, throwing more interceptions than touchdowns. The trade for Tony Dorsett did not work out as both he and Sammy Winder, the second-string running back, finished with inefficient running at under four yards per carry.
After the season, the last remaining Bronco from their Super Bowl XII team, offensive lineman Billy Bryan, retired, ending a 12-year era for the team. The lackluster defense, which included ranking 28th against the run, ended in the firing of defensive coordinator Joe Collier at the same time. Joe Collier spent sixteen seasons with the team, being the mastermind behind the famed 'Orange Crush Defense' of the late 1970s and early 1980s (Deardo).