Speculation is rife on which team will top the American Football Conference this season. With a whopping three of its four teams making it to the playoffs last season, it was, in that respect, the most successful division in the entire conference. But what a difference a year makes. With teams like last season’s division champ Ravens experiencing personnel issues with Bryant McKinnie, all of that success may have gone to players’ heads. It’s not enough to read the standings. Learn who can handle the pressure and who can’t. Keep these four NFL iPhone apps handy to become an authority on your team.