The NFL’s Hottest New Offense Is the Oldest Trick in the Book - WSJ
What explains the success of these backs are defenses that have grown ripe for them to exploit. A league analysis earlier this year found that teams were placing two safeties deep on 63% of snaps, versus 44% in 2019, in order to counter downfield passing attacks. As part of this strategic shift, there have been fewer players lining up near the line of scrimmage.