I think you can execute the technique without holding. You're pushing against the shoulder pads (in the video, they singled out one portion where Bulaga pushing up on the shoulder pads of the DL) to control the DL. You can push up / against the pads with the heels of your hands without grabbing and holding, and by adjusting the pressure of your arms / hands can control / keep the DL in front of you.
I'm not sure if the technique originated with the Packers, or if Campen adopted it. When watching the Steelers / Chiefs game, I noticed some of the Steelers OL using the 'Hug' technique.
Originally Posted by: macbob