Thats why he made it a class action and added in the NFL. This has the potential to get huge, all because the NFL put in a rule that they really didn’t have to do.
Even as a class action suit, they still have to be able to prove that the reason they weren't hired was because of their race. That's the part that will be difficult, imo. It's one thing to say "I didn't get hired because of my race", it's a whole other thing to prove it. There would likely have to be e-mail and/or video or audio taped evidence of someone actually saying it.
Remember Donald Sterling? Apparently, everyone knew the guy was a racist, but they couldn't get rid of him until there was actual audio of it.