Gray takes advantage of an NCAA rule that allows players to explore their NBA draft possibilities and return to college if they do n't hire an agent .
Gray averaged 13.9 points and 10.5 rebounds as a junior .
Gray , who averaged 13.9 points and 10.5 rebounds as a junior , takes advantage of an NCAA rule that allows players to explore their NBA draft possibilities and return to college if they do n't hire an agent .