The first thing to notice about this version of the play is the unbalanced line. Brent Celek is standing at the left tackle spot and Jason Peters is flipped over to the right as an extra tackle outside Lane Johnson. At the snap, Celek will (try to) ignore the defensive tackle on his side and head straight for the linebacker, while Evan Mathis kicks down on the defensive end / outside linebacker (1). On the right, Peters and Todd Herremans will block the men in front of them (2), while Johnson and Jason Kelce will both pull to the outside (3).