Catch a Defense With Snag Routes
The image above is the basic Snag concept. The receiver has a seven to eight yard split, a typical split when a crossing route is being run, and he runs a diagonal stem to about five yards and sits down in a zone while the running back runs a shoot route or also known as a flat route to an open area.
One may ask, how does the receiver know when to sit down in a zone (what Bobby Petrino calls his "Look" Route)? The way for a receiver to know is to read the play side linebacker. Once the play side outside linebacker runs across the face of the receiver running the route, he sits down and looks at the quarterback. The play side linebacker is likely to cross the face of the wide receiver because of the flat threat made by the running back. The quarterback's job in this is to read High to Low. He reads the wide receiver and if the receiver isn't open, he checks down to the running back in the flats. Over the past few years, we've seen passing offenses evolve; going from the normal Ace personnel (2 WR, 2 TE, 1 RB) to Empty sets (5 WR's, no RB, no TE). We're seeing a lot of spread offense principles implemented in NFL passing offenses and we're seeing a full-blown spread offense at the college level. Teams are increasingly shotgun more than ever and passing concepts are becoming more and more sophisticated to beat the defense. The Snag concept is more popular than ever. Houston, Illinois, Ohio State, Oklahoma State, and Southern Mississippi have all had success with its use.