According to a report from ESPN Chicago, Greg Maddux has informed the Cubs that he is leaving the team for a similar position with the Texas Rangers.
General manager Jed Hoyer told ESPN MLB Insider Jim Bowden that  has informed the team that he will not return as a special assistant because of the opportunity to join the Rangers in a similar capacity.
Maddux spent two years as a special assistant to general manager, working with Cubs pitchers in the minor leagues and doing some scouting for the club. According to the Tribune, the team had hoped Maddux would stay with the Cubs through the transition from Jim Hendry to Theo Epstein.
Maddux's older brother, Mike, is the current pitching coach for the Rangers.