ATHENS — The decisions by running backs Nick Chubb and Sony Michel to return for their senior seasons left a thin class of Georgia prospects in the NFL draft. That didn’t keep Atlanta Falcons coach Dan Quinn from attending Georgia’s pro day on Wednesday, along with general manager Thomas Dimitroff, assistant general manager Scott Pioli and 10 more staff members. “Knowing the players who have come through here, although there may not be as many high-profile names this year as in years past, there are some good football players here who will play their way onto rosters,” Quinn said.