Slowly but surely, analytics have creeped into the game of football and in the last few seasons they have begun to become common place. ESPN recently hired SB Nation’s Bill Connelly who founded the S&P+ advanced analytic system at Football Outsiders in 2008. The Fremeau Efficiency Index (FEI) has been around for awhile and of course there are the Sagarin ratings. ESPN has created the Football Power Index (FPI) which slowly became a system used to analyze the sport. Most recently Pro Football Focus has gotten into the act by grading players and using other types of advanced stats.