Playbooks
Field Sim 3 is a simulated pressure Cover 3 zone blitz out of the Nickel 2-4 personnel group. Both outside corners drop deep to the sideline thirds while the play shows a five man rush look, but the diagram reveals underneath defenders sinking into short zone drops (curl and flat areas) instead of true blitzers, disguising who actually comes. The interior defensive linemen and one linebacker crash the box with hard downhill angles, so the primary read for the defense is confirming which underneath zone drops out into coverage versus which rushers actually get home, and the QB's first answer is usually the shallow crossing or curl route sitting in the vacated middle zone.
Pre-snap, check if the offense has trips or bunch to one side, since Field Sim 3's zone drops can get stressed by natural picks and rub routes. Watch the offensive line's protection slide before the snap, if they are already sliding toward the disguised rush side the play is tipped and you should consider an audible. Post-snap, identify which underneath defender is dropping into the shallow zone versus rushing, this tells the QB where the soft spot in the middle of the field is located. This scheme beats man beater route combos and quick game concepts because the disguised rush disrupts timing routes before they develop. It can be exposed by RPOs and playaction rollouts if the QB reads the crashing linebackers and linemen quickly, so know your outlet checkdown before the snap if you are calling plays against it.
Disguise the pressure by holding your pre-snap alignment neutral so the offense cannot identify who is rushing versus dropping until the ball is snapped.
Use this on early downs or third and medium when offenses are more likely to call quick game or shallow crossers, since the underneath zone drops close passing lanes to those routes.
Combine Field Sim 3 with Cover 3 Match or Cover 3 Sky on back to back snaps so the offense sees a similar shell but gets a different pressure package, keeping the QB guessing.
Manually user the zone defender dropping into the deep middle third to jump any dig or in cutting route that tries to exploit the seam vacated by the rushers.
Avoid calling this against empty formations or heavy spread sets, since the underneath zone coverage can get outnumbered if the offense removes blockers and floods the short middle.





































