What is the 4-3 defense in 11v11 football?
The 4-3 in 11v11 football is four down linemen and three linebackers, and it is the most balanced arrangement in the sport. The four linemen cover the interior gaps, the three linebackers cover everything behind them, and neither group is asked to do the other's job. Its real advantage is that it gives nothing away: because the four rushers never change, you can play any coverage behind it and the offense cannot tell which one is coming from looking at the front.
4 down linemen, and that is the first number in the name. A front is named for how many men are on the ball and how many are behind them. Everything else about the defense, including which coverage you call, is a separate decision.
Why this front works in 11v11
Four rushers is the number that lets the coverage stay hidden
The offense has to block the same four men every down, so they learn nothing from your alignment about what the other seven are doing. A defense whose front tells you the coverage has already given the quarterback his answer before the snap, and the 4-3 is the front that gives up the least.
It rests entirely on two interior linemen
The defensive tackles have to hold up against a double team, or the middle collapses and the linebackers are blocked before they have read anything. If you do not have two of those players, this front will look worse than a 5-2 no matter how well it is coached.
Three linebackers means every run has somebody unaccounted for
Against a standard formation the offense can block five linemen with five linemen. The extra defender in the box is a linebacker who is not blocked, and finding him is the offense's whole problem on a running down. That is the structural argument for this front.
It is the most balanced arrangement in football
Four down linemen cover the four interior gaps, three linebackers cover everything behind them, and neither group is asked to do the other's job. Nothing about it is clever, which is exactly why it has survived for sixty years and why it is the front most of your players will already have seen.
A front is not a coverage, and it never was
Where your linemen stand and what your defenders do after the snap are two different decisions that happen to be made in the same huddle. You can play Cover 3 out of a 3-4 or out of a 4-3, and the coverage does not know or care. Coaches who are stuck on this vocabulary are almost always trying to make one word do two jobs.
It is the easiest front to pair with any coverage
Because the four rushers never change, your coverage can. The same 4-3 look can play man behind it on one down and a three-deep zone on the next, and the offense cannot tell from the front which one is coming. A front that gives nothing away is worth more than a front that does something clever.
Beside the one you already know
Same offense, same personnel, different arrangement. A front is only ever where people stand.
- base4-511v11: the base front.
4 on the ball and 5 off it.
- 4-44-611v11: the 4-4 front for comparison.
4 on the ball and 6 off it. The same eleven men, standing somewhere else.
Three ways to fit the run from it, and what each one costs
Two-gap the tackles
Where it excelsEach interior lineman is responsible for the gap on either side of the blocker in front of him. It is unblockable arithmetic for the offense: every gap is owned without spending a linebacker, so all three stay free.
Exposed · the middle underneathIt asks two players to read and react rather than attack, which is slow, and at youth level slow interior linemen get moved backwards. A two-gap front with players who cannot hold is a front with no gaps owned at all.
One-gap and attack
Where it excelsEvery lineman has one gap and goes. Much easier to teach, much faster off the ball, and it gets your best athletes into the backfield rather than standing in it waiting.
Exposed · the flatFour attacking linemen can be run around. A stretch play or a sweep asks your front to run sideways, which attacking linemen are bad at, and the edge is where this version gives up its yards.
Slide the front toward the strength
Where it excelsShift all four linemen a gap toward the tight end. It puts your bodies where the extra blocker is, which is where the run is going most of the time at this level.
Exposed · deepYou have declared your intention before the snap and left the backside light. Counter, reverse and anything that starts one way and finishes the other is now the best play in their book.
One-gap and attack, at this age
Two-gapping is better football and worse youth football, because it needs interior linemen who can hold ground against a double team and most teams do not have two of them. Give every lineman one gap and one direction, accept that the edges are softer, and put your coaching time into the linebackers reading their keys rather than into the hardest technique in the sport.
What to change when it stops working
They double your best lineman every snap
Good, and expected. A double team means one of their blockers is not on a linebacker, so somebody is running free. If your linebackers are still being blocked while your tackle is doubled, they are reading the wrong key rather than the offense being clever.
Your middle linebacker is always late
Nearly always a depth problem rather than a speed problem. At youth level five yards off the ball is too deep to fill an A gap in time. Bring him to four and watch the same player arrive on time all game.
They spread you into a passing look
The 4-3 handles this better than any other front on this shelf, because the four rushers do not change. Substitute a defensive back for a linebacker if you have one, and if you do not, simply drop the outside linebackers wider and play the same defense.
When not to line up in it
When you have no defensive tackles
The whole front rests on two interior linemen who can hold up against a double team. If you do not have them, the middle collapses on every running play and your linebackers spend the game covered up by blockers they should never have seen.
Against a heavy running team at youth level
Four down linemen against a team determined to run between the tackles is one fewer body in the box than the 5-2 gives you. That is a fair trade against a balanced offense and a bad one against a team that has no intention of throwing.
Take it to your team
Draw your plays in the football playmaker, collect them in the free playbook maker, and print play cards so every player knows them come Saturday.
Draw it for your own team
Open the designer at 11v11, put your defenders where this page says, and print it so everybody shows up on Saturday knowing the same thing.
Open the free play designerRelated questions
What is the 4-3 defense?
What is the advantage of a 4-3 over a 3-4?
Should a youth team run a 4-3?
Can you play man coverage out of a 4-3?
Related guides
Coach Ray Carroll
Coaches 5v5 flag football from kindergarten through 7th grade in San Mateo and San Carlos, California, and built RC Football to design, teach and print the plays his own teams run.