OK so IMO, this is a disguise by the OL to make it look like a screen play to Gibbs and get 1/1 up top like we did with both WR's. If OL makes blocks this play was a TD. LG pulls as he is the "blocker" for the screen pass, LT and TE pinch in to fill his gap, center RG, RT all supposed to block down. Center gets bull rushed but does his job for the most part, RG trying to get to LB, RT blocking down and the DT shoots right between them and throws our RG down like a rag doll and pushes our RT backwards into the pulling lane of our LG. All this disruption allows the DE to get a step on our pulling G and make it to the QB. If RG/RT get off the ball clean and make that block on the DT, then our pulling G kicks that DE out, QB has time to throw and it's a TD if he makes the throw.