So what has Belichick done with his oddball assortment of defenders, anchored by Vince Wilfork? Did he choose 3-4 or 4-3? One-gap or 2-gap? Traditionally a 3-4 coach, Belichick ran this system even when almost every other NFL team was mimicking the 4-3 defenses popular in Dallas and Tampa. But Belichick now finds himself in a time when, by desire and necessity, he has largely moved to a four-man line approach. And yet, in typical Belichick fashion, he has chosen not to rely solely on the 4-3 or 3-4 or a 1-gap or 2-gap approach. Nor does he just alternate between 3-4 and 4-3 looks from play to play. Instead, Belichick has essentially combined both approaches in the same play. How? The Patriots run a 3-4 to one side of the field and a 4-3 to the other, all on the same play. The key to all this is Wilfork. He lines up over the center and assumes his traditional spot of run-stuffing, blocker consuming, two-gapping war daddy. Belichick fills out the rest of the pieces based on the strengths and weaknesses of his other defenders.