Playbooks
Cover 1 Robber out of the Penny 3-3-5 Big Nickel personnel is a man coverage shell with a single deep safety and a robber defender sitting underneath in the middle of the field to jump crossing routes and dig concepts. The diagram shows four defenders in press or man alignment at the line with straight vertical drops, a deep single high safety rotating over the top, and the robber defender (the olive circle) sitting in the intermediate zone ready to rob any in-cut or crosser. This is a man beater killer and a zone beater against teams that try to sit routes in the middle of the field, with the primary read progression starting at the deep middle safety to confirm single high, then working to whether the robber defender bites on any underneath crossing action before the QB resets to any leaked man matchup on the outside.
Confirm single high safety alignment pre-snap, if the safety is rotated deep and centered this is likely Cover 1 or Cover 3, so hold the ball and let route concepts develop before committing. Watch the robber defender's depth and width before the snap, if he is shaded toward the middle of the field expect him to jump any drag, dig, or crossing route that tries to work through the intermediate zone. This coverage shell is vulnerable to option routes and speed outs that attack the boundary quickly before the robber can rotate over, so look for man beaters that isolate a corner one on one on the outside. Post-snap, key the linebacker depth on the underneath drops, if they sink too fast into the robber zone that opens up flat routes and quick hitters underneath the sticks. Play-action rollouts and RPOs can exploit this look because the man coverage defenders are locked onto receivers and slow to react to run action, so watch for run fakes that hold the second level defenders.
Pre-snap, identify if the offense is running mesh, drag combos, or any deep crossers designed to sit in the middle of the field because the robber defender is sitting right there to jump those throws.
Use this call on early downs or in obvious pass situations where you expect the offense to attack the middle of the field with in-cuts, digs, or crossing routes.
Disguise the robber defender's alignment pre-snap by mugging him near the line or shading him wide before the snap to bait the QB into thinking it is a different coverage shell.
Pair this call with Cover 1 Hole or Cover 3 Buzz in the same set to keep quarterbacks guessing between a true single high robber look and a zone drop shell, since both show similar pre-snap alignment.
Blitz off this shell sparingly since the man coverage behind it is already tight, but if you need a home run call late in the down and distance, mix in Mike Blitz 1 from the same personnel to keep the same picture.