Quarterbacks, welcome to the era of defensive patience. Across Canadian football, defensive coordinators are shifting from pressure-first schemes to coverage-heavy shells like the 3-7-2 and 4-6-2, dropping 8 — sometimes even 9 — defenders into coverage.
Their mission is simple: clog passing lanes, take away your big plays, and dare you to be patient enough to march the ball the long way down the field.
Let’s break down how to spot it — and, more importantly, how to make them regret using it.
1. Recognizing the Look

Image 1 – Myers vs. Cumberland (Tight Zone 3-7-2)
This is the classic 3-7-2: three down linemen, seven defenders off the line in a shell, and two deep safeties. The linebackers are bailing early, building a wall across the 8–12 yard range. Crossing routes and seams are tough here, and the rush comes from only three.
QB Tip: Count the box pre-snap. If there are only five defenders within striking distance of the LOS, you’re probably looking at heavy drop coverage.
Image 2 – Waterloo vs Hamilton (Midfield 4-6-2)

Here we’ve got four down linemen instead of three, but the philosophy is the same — just with a bit more immediate pass rush threat. Behind them: six mid-level defenders taking away the intermediate routes, plus two high safeties patrolling the deep zones. This is a hybrid between pressure potential and heavy coverage.
QB Tip: Four-man fronts can still surprise you with stunts and delayed blitzes. If protection is solid early, work your high-low reads against those mid-range defenders.
Image 3 – London vs Niagara (Wide Field 3-7-2)

This is a wide-open field example of 3-7-2. The three-man rush is spread to contain outside runs, while linebackers and DBs flood every lane between the numbers and the sidelines. Deep shots will be doubled, and seams will close in a heartbeat.
QB Tip: Don’t force the hero ball here — if they’re giving you the flat and the hitch, take it until they tighten up.
2. Why Defenses Love These Coverages
- Extra man in coverage: The CFL field is huge. Dropping 8+ bodies into space shrinks your windows fast.
- Takes away explosives: Deep passes are high risk against layered zones.
- Forces your hand: Without patience, you’ll either eat a sack or force a pick.
3. Beating Heavy Coverage Shells (3-7-2 & 4-6-2)
- Run the Ball – Draw plays, QB keepers, and quick-hitters punish empty boxes.
- RPO & Quick Game – Freeze those mid-level defenders with instant decisions.
- Flood Zones – Send three receivers to one side at different depths.
- Tempo – Snap quickly to prevent disguise and rotation.
- Double Moves – Once they’re sitting on short routes, hit them deep over the top.
Final Word to QBs
Whether it’s a 3-7-2 with a light rush or a 4-6-2 with a stronger front, these defenses are banking on you getting frustrated and making mistakes. Recognize the shell early, take what’s there, and be disciplined enough to play the long game until you force them out of it.
Ready to take your game to the next level? Look into our “PRE-SNAP READ” online course given by QB Coach Ron Raymond.