Turner was most recently an offensive consultant with the Carolina Panthers of the National Football League (NFL) in 2017.

He also had two separate stints as the offensive coordinator for the Chicago Bears of the National Football League (NFL), the first from 1993 to 1996, and most recently from 2005 to 2009.

He earned a scholarship to the University of the Pacific, where he led the Tigers in receiving in 1975 and 1976 and totaled 40 receptions for 666 yards with three touchdowns.

[3] Turner was the head coach at San Jose State for one season before being hired by Dave Wannstedt in the first of his two stints as the Bears offensive coordinator.

The highlight of his tenure came in 2001 when he guided the Illini to a 10–2 record, the Big Ten Conference title, and an appearance in the Sugar Bowl, which Illinois lost to LSU.

[3] One of Turner's former players at Illinois who also went on to the NFL, Josh Whitman, was named director of athletics at the university on February 26, 2016.

Turner was hired for his second stint with Chicago on January 9, 2005, replacing Terry Shea as Bears offensive coordinator.

In the 2005 season, Chicago started a rookie at quarterback, Kyle Orton, who was a fourth-round draft pick and compiled a 10–5 record.

[3] Turner contributed to Chicago's appearance in Super Bowl XLI by coordinating an offense that ranked 15th in the NFL in total yards in 2006.

[3] Turner also holds the distinction of being the offensive coordinator for each of the top two quarterbacks in Bears history in single-season gross passing yardage.

Chicago's 38 offensive touchdowns (24 passing, 14 rushing) in 2006 were the unit's highest single-season total since scoring 44 in 1995.

[3] In 2006, the Bears led the NFC while tying for second in the NFL with 427 points, the second-highest single-season scoring total in franchise history.

[3] The Bears scored 48 points against the Vikings on October 19, 2008, the most for the club since tallying 48 on December 7, 1986, versus Tampa Bay.

The offense has compiled more than 300 total net yards in 25 of their last 48 games after doing so just three times in 2005; the third season of Turner's first stint with the team.

Bears quarterbacks threw for over 3,000 net passing yards for the third straight season, a first for the franchise since the 1997–99 campaigns.