Not much different from a television series. Many of them appear to be great, and based on the character and writing, they seemingly can't go wrong. Then to appeal to a larger audience, the producers promote the show in every way imaginable so it becomes an inescapable pop culture craze that fizzles out, and the writing becomes more and more far-fetched in an attempt to wow. Few shows haven "gotten big"and avoided this (Breaking Bad, for example.). Put simply, the NFL is in the process of jumping the shark. It was cool when the game was about football. Let's remember that a lot of the rule changes occurred not due to player safety but for more emphasis on the passing game and less contact on WRs. What was the reason for that? Same reason for the league invented home run explosion in MLB 20 years ago. That worked great for the ratings then. Long-term, it cost the league its status as the national pastime. NFL now carries the torch of greed and awaits the same fate. The hypocrisy of player safety is asinine when you consider only the most marketable players (QBs) are more protected than other positions, since their injuries would reduce revenue. We are already starting to hear about the 18 game schedule, adding playoff games, etc. Same garbage for why I completely stopped watching pro baseball.