Friday, September 9, 2016

A detailed look, with gifs, explaining why Chip Kelly's offense has stopped working


The predictability of Kelly’s offense has gone beyond the defense knowing who would get the ball, as defenders frequently now know which play is coming.


This wasn’t an isolated incident. After losing to the Cowboys early in the 2015 season — a game in which the Eagles managed only 7 rushing yards — Eagles receiver Josh Huff said Dallas’s players were calling out Kelly’s plays before the snap. Another example came in Week 1 of 2015, as the Atlanta Falcons repeatedly checked into defenses designed to stop whichever play Kelly called. Whenever he called an inside zone — again, with the running back and tight end aligned to the same side — the Falcons, in turn, checked to a defensive stunt designed to blow up that specific play.


Kelly’s 2015 Eagles offense was essentially unchanged from 2013 (and the 49ers offense this preseason looked identical as well), and what two or three years prior was fresh is now stale and easily defended. If anything, Kelly’s later offenses were more simplistic than his earlier ones, as the creative motions and formations that Kelly once used so well largely vanished.


the 2015 Eagles defense defended an incredible 1,148 plays, while the team that defended the fewest, the Seahawks, played just 947 snaps. At an NFL average of around 65 plays a game, Kelly’s defense effectively played three more games than Seattle’s.