Check out Chris' latest post about the Y-Stick concept and picking up blitzes and twists upfront:
When teams choose to use empty protection in the pass game, the offensive line is under more pressure than usual. Essentially, empty pro (also sometimes referred to as "big on big") is a pass protection concept that only involves the offensive line.
Most pass plays involve an extra blocker; teams either keep the running back or tight end in to pass protect (or have him at least chip a defender while leaving for a route), or motion in a slotted tight end to help out. There are plenty of creative ways to protect the quarterback on pass plays, but empty protection is by far the riskiest.
That's why it's nice to tie empty protection in with a good route combination that will come open early, especially if the defense blitzes. The Y-Stick concept is popular among Air Raid and Pro Style offenses alike, and it's a perfect match with empty pro. Let's take a look at why this is so effective:
