Georgia Tech demotes defensive coordinator Thacker amid struggling defense

Georgia Tech demotes Andrew Thacker from sole defensive coordinator to safeties coach.
Kevin Sherrer promoted to sole defensive coordinator.
Georgia Tech's defense ranks 103rd in points allowed and 112th in yards allowed.
Georgia Tech has given up 38+ points in 3 of first 5 games this season.
Georgia Tech faces No. 17 Miami next week on October 5th.