The added requirements have pared the ranks of certified agents from a peak of 1,400 a decade ago to about 800. Most of them don’t have a single client. But each year brings 250-300 new applicants, according to the NFLPA’s Levin. More than 100 agents have been disciplined over the last 10 years for rules violations, he said. Some received reprimands; others had their certification suspended or revoked. Meanwhile, many agents allow their certification to lapse because they can’t find clients.