By Andrew Holleran The National Football League appears to be as strong as ever, with the league coming off an incredible postseason, both on the field and in the television ratings department. NFL games are the most-watched events in the country and there isn’t a close second. It’s difficult to see that changing anytime soon, too. Years back, though, there was some speculation about the National Football League’s future. Dallas Mavericks owner Mark Cuban predicted in 2014 that the league was going to “implode” in 10 years. “I think the NFL is 10 years away from an implosion,” the Dallas Maver…