The NFL shield has tackled numerous threats to its domination of broadcast sports over the past year. Among them was the 4,500 player-strong concussion lawsuit brought against the NFL in 2013, which analysts speculated could cost the league millions of dollars. This assessment started to come true over the past 12 months, as the league's decision to settle with plaintiffs and its agreement to never cap payments to future NFL concussion victims has amounted to an $870 million-plus slew of payouts so far.

Jack Brewer of the New York Giants in December, 2004

But the NFL's most pressing concern this year—the one making the biggest, worst headlines for the league—has been the overwhelming influx of reports and allegations of domestic violence and other abuse perpetrated by NFL players and staff. This blowup has overshadowed all other concerns now that the 2014 season is in full swing (including the remarkable revelation that 30 percent of players will suffer game-related neurological concerns during their lifetime, as documented by recent court assessments).