Offensively speaking, the winds of change continue to blow in the NFL.
Very much a copycat league, innovators like Chip Kelly continue to lead the way in new trends that annually leave defensive coordinators with countless sleepless nights, defenses attempting to adapt in the offseason and constantly on their heels during the season.
While Kelly innovates, Marc Trestman and Mike McCoy breathe new lives into veterans under center. Jay Gruden puts personal touches on a classic approach. Darrell Bevell keeps a dying breed of running-centric offenses alive in a rather emphatic manner.
Pair these great minds with an ageless wonder like Peyton Manning. A comeback story like Philip Rivers. The downright sheer talent of a LeSean McCoy. The pure genetic makeup of a Jimmy Graham, who alters the game as we know it.
What we are left with is a league that laughs in the face of defending stat leaders from prior seasons, if not the record book itself. Last year provided a season of firsts and video game-esque outputs, but the thrones of those who led the way in critical categories are very much in danger as the evolution continues.
Let's take a look at the players who sat alone at the top of each pertinent statistical category by season's end last year and whether they'll be able to retain the crown in 2014.
Note: All statistics courtesy of ESPN.