The reason blockers rarely stopped Selmon, or others on our list, is that the pass rush is more than distinct moves. Pass rushers often are framed as the least studious of football players. When the center snaps the football, Mongo, you chase the quarterback and make him lie down. The reality is a little more complex. And it is.
Every pass rusher devises a plan of action.
The best among them know when to jettison that plan, and it's usually after the crucial first step. If they see a guy bend at the waist, they run around him. If he's back on his heels, they bull rush him. I always knew the ones who had figured what they were going to do ahead of time. You could see it on film.