This fall the NFL’s popularity has declined enough to be cause for notice and alarm. When ratings slide, the NFL takes a hit not only in its bottom line—which it can afford—but also in its sense of inevitability, which is more dangerous to its psyche. The National Football League aspires to own the entertainment sphere—to “dominate,” as sports lingo would have it. So when ratings declined 11 percent early this season, NFL headquarters sent out a dispatch to all commands, seeking to explain and reassure.
http://www.weeklystandard.com/the-nfl-is-in-decline/article/2005033