Seven schematic trends that define the modern NFL

From five-man fronts, to stunts, to safety switches, press coverage, and pre-snap motion, here are seven trends that define the modern NFL.

The NFL represents a constant battle of schemes and concepts between offenses and defenses. The third receiver predicated the 4-3 defense in the 1950s. The AFL’s vertical multi-receiver sets caused the creation of the 53 defense in the 1960s. The West Coast offense forced the advancement of the zone blitz in the 1980s. The 49 defense killed the old two-back pro set.

Throughout pro football history, there have always been those base, tentpole schemes that defined the game, because they worked so well… at least, until somebody came along with the perfect answers to erase them.

In today’s NFL, here are seven concepts that teams, coaches, and players are adhering themselves to more and more — because they work, until they are checkmated by another scheme.

(All advanced metrics courtesy of Pro Football Focus and Sports Info Solutions unless otherwise indicated).