Gregg Williams’ Jets blunder joins list of all-time coaching brain farts

On Monday, Gregg Williams was fired as the Jets’ defensive coordinator. It was the direct result of his boneheaded play-call for an all-out blitz in a Hail Mary situation against the Raiders in the final seconds of a dreadful 31-28 loss that dropped Gang Green to 0-12. With that in mind, The Post looked back…