The NFL Needs to Investigate the Patriots Signing Antonio Brown

Jason Smith and Mike Harmon ask the important question. At some point, doesn't the NFL have to investigate the Patriots signing Antonio Brown? We all just watched a star player insubordinate his way off a team he didn't want to be on and be rewarded very quickly. And if it's not an investigation, the NFL should have a rule that if you get released for insubordination, then you should be barred from signing with a new team for a certain amount of time. Antonio Brown got a reward and an upgrade on his brand for acting like he did.