He had been honored as one of the top ten all-time Massachusetts high school football players by The Boston Globe.

Jauron won the 1972 Asa S. Bushnell Award as Ivy League Player of the Year in football.

[12] After graduating from college, Jauron was selected in the fourth round of the 1973 NFL draft by the Detroit Lions.

He worked with the team for eight seasons, serving under three different head coaches: Forrest Gregg, Lindy Infante, and Mike Holmgren.

[19][20] The Jaguars made the playoffs in three of Jauron's four seasons with the team, including an appearance in the 1996 AFC Championship Game.

[21][22] Following his first head-coaching job, Jauron served as the defensive coordinator for the Detroit Lions in 2004 and the first 11 games of the 2005 season before being named the team's interim head coach.

[23][21] Jauron became the 12th head coach in Chicago Bears history on January 23, 1999, when he was hired to replace Dave Wannstedt, who was fired after two consecutive 4–12 seasons.

[27] In their 13–3 2001 campaign, Chicago finished 8–0 in games decided by seven points or less, including back-to-back overtime victories.

[29][30] After earning their first division title in 11 years, however, Chicago lost a home game to the Philadelphia Eagles, 33–19, in the NFC Divisional Playoffs.

[33] He was promoted to interim head coach of the Lions on November 28, 2005, after the mid-season firing of Steve Mariucci.

[35] Jauron was named the 14th head coach in Buffalo Bills history on January 23, 2006, following the resignation of Mike Mularkey.

[38] Bills owner Ralph Wilson announced on December 30, 2008, that Jauron would be brought back for the 2009 season despite the expiration of his three-year contract.

[42] On February 3, 2010, Jauron was hired by the Philadelphia Eagles as a senior assistant and defensive backs coach.