This is just an outside zone with a BOSS concept (back on strong safety),
but holy crap is Dwayne Allen (83) good here.
Actually, good is an understatement -- Allen is perfect here. First he knocks the defensive end (Jackson, 97) onto Solder, but he does it without getting his outside hand involved so he can still climb quickly to the outside linebacker (Telvin Smith, 50). Then he blocks the outside linebacker so well that the middle linebacker (Paul Posluszny, 51) can't get around the block despite being unblocked himself.
And that is not a hold on the linebacker. It just isn't. I am as tired of New England winning as anyone, but that simply isn't a hold. It's great blocking.