“It’s not that it’s a terrible offense: it’s that it is woefully inconsistent, and Brock Purdy has looked way out of sorts against tough defenses.
They have false starts or holds that negate key plays. When they have receivers beat man coverage — the Chiefs’ recipe that teams will keep using, especially without Brandon Aiyuk, and until McCaffrey returns — Purdy is either pressured, or misses the read, or the throw.
He’s often pressured because the protections are questionable against increasingly common overload blitz looks, or because someone misses their block, or gets beat off the snap.