[4] After two years at Temple Law School, Griffin returned to his alma mater to begin his coaching career as an assistant for the Lions from 1967 to 1970.
[8] During his tenure, Griffin coached 1981 NBA draft pick and ECAC North Player of the Year, Mike Ferrara.
[9] Taking a year off after leaving Colgate, Griffin spent one season as the head men's basketball coach at Thiel College, before returning to RPI as the head men's basketball coach, a position he would hold until 2014.
Overall, including one season as the head women's basketball coach for the Engineers, Griffin compiled a 402–382 record, and earned three trips to the Division III NCAA Tournament.
[2][4] Griffin would spend one season as the head boys basketball coach at the Hoosac School from 2014 to 2015 before stepping aside due to health issues.