Saunders was an offensive consultant in Baltimore the past two seasons, working on the staff with Jackson in 2009. Jackson went to Oakland last year as offensive coordinator and was promoted to head coach in place of Tom Cable earlier this week.
Saunders has been an offensive coordinator for the Kansas City Chiefs and the St. Louis Rams, as well as the assistant head coach for the Washington Redskins, with whom he spent two years with current Raiders quarterback Jason Campbell. During Saunders' first stint with the St. Louis Rams, as assistant head coach/receivers coach, the team won the Super Bowl.
The offensive coordinator job is just one of many the Raiders needed to fill. The only assistants under contract before Saunders' hiring were defensive line coach Mike Waufle and defensive backs coach Kevin Ross. Defensive coordinator John Marshall will not be back next season, although some of the other assistants still could be retained.
The Associated Press contributed to this report.