Georgia Tech defensive coordinator Al Groh stretches with members of the Yellow Jackets defense during NCAA college football practice in Atlanta. The former Virginia coach was a polarizing figure during his nine seasons trying to lead his alma mater back to football prominence, and the reception he gets when he returns as the defensive coordinator for No. 12 Georgia Tech on Saturday figures to be mixed, at best. (AP Photo/David Tulis, File)

Photo by: David Tulis

Georgia Tech defensive coordinator Al Groh stretches with members of the Yellow Jackets defense during NCAA college football practice in Atlanta. The former Virginia coach was a polarizing figure during his nine seasons trying to lead his alma mater back to football prominence, and the reception he gets when he returns as the defensive coordinator for No. 12 Georgia Tech on Saturday figures to be mixed, at best. (AP Photo/David Tulis, File)