Inside zone is not a new play to defensive coordinators; neither is the split zone, but it can give defenses fits if not fit up correctly. In its simplicity, it is a creative play to challenge a defense. Unlike its zone counterpart, the split zone creates an extra gap. The play itself is much like the counter without the pulling guard. When offenses run counter the linebackers can react to the pulling guard and fit the extra gaps. The split zone forces the linebackers to fit their gaps. This puts pressure on the secondary (mainly the safeties) to ensure their fits are correct.
In the clip below, Iowa St. runs a gap plug blitz and the defensive end to the H-back runs up the field to hold the “C” gap. The out block by the “H” creates an extra gap. The safety to the play should have fit the inside shoulder of the “H” because the DE was taking the outside. Instead, the safety stays outside and is blocked out, leading to Baylor’s first score of the day. Bottom line, Split Zone has to be treated as though it is a gap play (think power/counter) or a defense will be gashed.
Teams that run inside zone are looking for the cutback. Versus a zone play, the linebackers have to fill their gaps (there is no puller). The offensive line creates a wall and allows the running back to cut back to the open weak side. In the clip above, ISU was running a run stop blitz, but because the safety didn’t fit his gap, it led to a touchdown.
Teams that run split zone and the read-option offshoot, need to be played as though they are gap scheme heavy teams. Add RPO’s to this play, and it puts tremendous pressure on a defense, all from a simple zone scheme. There is hope, much like the Zone Read, a defense can attack this play on the principles of the offense. Continue reading “Defending Split Zone”