Josh Allen threw three interceptions against the New England Patriots. Against the Baltimore Ravens, he suffered six sacks, lost a fumble, and broke his streak of 2+ touchdown games. Both teams make major use of the Cover-0 defense; in fact the Ravens used it 16 times on Sunday (per Brian Daboll). That’s out of 30 total blitzes the Ravens sent at Allen and company. For most of the day, Buffalo struggled to respond to the onslaught. Why did this happen, and what could they have done? To understand the context, let’s start with understanding Cover-0.