From a schematic standpoint, Williams will use every front in the book. At his core, though, he's a 4-3 over/under guy. He implements a defensive audible system that adapts to offensive formations, allowing his guys to be in the best possible call on every down. Although the complex nature of the scheme puts a ton of pressure on the linebackers and safeties to make adjustments, it is a system that produces outstanding results when mastered. On passing downs, Williams certainly isn't afraid to mix in a variety of blitzes from exotic looks -- including some Okie fronts (3-4 or nickel 3-3 packages) -- as well as the standard 4-2-5 nickel front. He will order up Cover 0 all-out blitzes in any area of the field, which makes him the ultimate gambler as a play-caller. I've talked to many of his former players over the past few years, and they've raved about his aggressiveness and attack mentality.