Four months after the NCAA began an investigation at Georgia Tech that resulted in the vacation of the Yellow Jackets’ 2009 ACC title, a Tech assistant coach ran afoul of rules that has earned him a one-game suspension. Co-offensive line coach Todd Spencer will not coach in the Jackets’ season opener against Western Carolina for making impermissible phone calls to Tech prospects. Five other coaches, including recruiting coordinator Andy McCollum, also were reprimanded by the school for the same violation. “In January, we agreed with the NCAA’s assessment that these were secondary violations and, in addition, other educational components were implemented,” associate athletic director Wayne Hogan said in a statement. “We consider this matter closed.” Under NCAA rules, coaches are permitted one call to a high school junior prospect or his parents between April 15 and May 31. According to records obtained through the Georgia Open Records Act,