It’s been a while, but let’s talk some defense.
Before I was an offensive coordinator, even before I was a JV Head Coach, I was the Defensive Coordinator for our JV team. For ten years, I cut my teeth calling defense, finding ways to put pressure on opposing offenses, and finding different combinations of players and schemes to help us win games.
Since taking over in my second stint as a JV HC, I haven’t done much on the defensive side of the ball, in terms of play calling and game planning, but I still keep tabs on what my buddy Coach Whitmore does with his defense. Over the years, we’ve tried matching our Varsity’s defense the best we could with who we have, and teaching them the basic skills they’d need to be successful at the next level. And that whole time, I’ve been noticing something. One of the most freeing realizations I’ve had as a sub-varsity coach is this:
If offensive coordinators can build an entire system around a handful of core concepts, why can’t we do the same thing on defense?
We tend to think of defense as reactive. We install a front to stop this. A coverage to stop that. A pressure to answer something we saw on film. Before long, our JV call sheet looks like a buffet table—everything available, nothing mastered.
But offensive coordinators don’t live that way. The good ones build around a base. They run Power from 10 personnel and 21 personnel. They run Inside Zone from spread and from tight formations. The formation changes. The rules don’t.
That’s the mindset shift.
If you want to design a strong JV or sub-varsity defense, start thinking like an OC.
Build a system where you can change the picture without changing the rules.
Defense as a System, Not a Collection of Calls
Offensively, we talk about systems all the time.
“Everything builds off Power.”
“Everything builds off Inside Zone.”
“Everything marries the Mesh concept.”
But defensively, we often teach plays instead of principles.
At the JV level, that’s a mistake.
Your players do not need five different fronts with five different rule structures. They need one rule structure that can survive in five different pictures.
The goal isn’t to have more calls. It’s to create the illusion of multiplicity while preserving simplicity.
That’s exactly what good offensive coordinators do to defenses every Friday night.
Now flip it.
Instituting ASKA: The Defensive Rule Structure
If you want your defense to survive multiplicity, you need a common language. For us, that language is ASKA:
Alignment
Stance
Key Read
Assignment
I learned this acronym from Joe Daniel’s stuff a long time ago, and since I did, it’s changed the way we look at coaching defense. Every defensive player, on every snap, answers those four questions. Not just in your base front,but in every front.
If you build your defense like an OC builds an offense, ASKA becomes your blocking rules. It becomes your footwork. It becomes your base teaching progression.
Alignment
Instead of teaching “You’re a 5-technique in this defense and a 4i in that defense,” teach alignments relative to structure.
For example:
“If you are the C-gap defender, you align outside shade of the tackle.”
“If you are a B-gap defender, you align inside shade of the tackle.”
Now, when you shift from an Even front to an Odd front, the kid isn’t memorizing a new defense. He’s identifying his gap and aligning accordingly.
The picture changes.
His rule does not.
That’s thinking like an OC.
Stance
Stance should match role, not play call.
If you are a spill player, your stance reflects that. If you are a two-gap read player, your stance reflects that. If you are an edge setter, your stance reflects that.
When you shift from a 4-2-5 look to a 3-3 stack presentation, your defensive end might become a stand-up outside linebacker.
But if his rule is still “set the edge and spill pullers,” his stance and mentality stay consistent.
Different window dressing. Same core behavior.
Just like running Power from pistol instead of under center.
Key Read
Offensive coordinators teach their linemen: “Read the near hip.” “Read the play-side linebacker.” The defense shifts. The rule remains.
Defensively, your key structure should remain consistent across fronts.
For example:
Defensive linemen key the near knee of the offensive lineman.
Linebackers key triangle: guard to near back.
Safeties key #2 to backfield.
If those rules stay consistent, then changing from Cover 3 to Quarters does not require a total mental reset. The players are still reading the same indicators—they’re just fitting differently off of them.
That’s manageable at the JV level.
Assignment
Assignment is where most sub-varsity defenses get into trouble.
We change fronts, and suddenly the Mike linebacker has a completely different run fit, different coverage responsibility, and different pressure rule.
Now he’s thinking instead of reacting.
Instead, build assignment rules around structure:
“You are the play-side A-gap fitter.”
“You are the force player to the field.”
“You are the cutback defender.”
If you carry that language from front to front, your players don’t feel like they’re learning new defenses. They’re just learning new alignments within the same structure.
Again—just like an OC tagging motion without changing blocking rules.
Multiplicity That Marries Itself
Here’s the trap young defensive coaches fall into:
They install a 4-2-5. Then they install a 3-3 Stack. Then they install a Bear front.
Individually, each front makes sense.
Together, they create chaos.
If you’re going to be multiple at the JV level, your fronts must marry each other.
What does that mean?
It means:
Your spill philosophy stays consistent.
Your edge setting rules stay consistent.
Your coverage structure connects to your front structure.
Your blitz paths don’t contradict your base run fits.
If your 4-down front spills everything to the alley, but your 3-down front boxes everything back inside, you’ve just doubled your teaching load.
That’s not multiplicity. That’s fragmentation.
Instead, build your fronts as variations of the same idea.
For example:
Base Even front with a spill end.
Shift to a 3-down look by standing up the weak end—but keep spill rules intact.
Walk a linebacker to the edge to create a Bear look—while preserving gap integrity rules.
From the offense’s perspective, they see three fronts.
From your players’ perspective, they see one philosophy.
That’s building defense like an OC.
Being Multiple Without Changing Personnel
Sub-varsity football rarely has luxury depth.
You don’t have two Mike linebackers built for different systems. You don’t have a nickel specialist and a box safety.
So don’t design your defense like you do.
The most efficient JV defenses are personnel-stable.
Keep your best 11 on the field.
Move them around.
Offensively, coordinators create formation multiplicity without subbing constantly. They motion to trips. They shift to bunch. They trade tight ends.
Defensively, you can do the same:
Walk a safety down instead of subbing in another linebacker.
Reduce a defensive end inside instead of subbing in a nose.
Spin your safeties post-snap instead of checking into a brand-new coverage.
The kids learn movement, not replacement.
And movement is easier to teach than new roles.
Simplified Coverage Philosophy
Another area where defensive coaches overcomplicate JV systems is coverage.
Pick a family.
If you’re a middle-of-the-field closed team, live there. If you’re a quarters team, live there.
Build adjustments within that family instead of jumping between unrelated coverages.
For example:
Base Cover 3.
Spin to a 3-match concept.
Roll to Cover 1 on pressure.
All three live in the same structural world.
Now your corners always understand leverage. Your safeties always understand middle-field integrity. Your linebackers always understand hook-to-curl spacing.
Just like running Inside Zone with RPO tags instead of installing five unrelated pass concepts.
The JV Lens: Simplicity First
Varsity teams can handle more volume.
JV teams need more clarity.
At this level:
Fewer fronts.
Fewer coverages.
Fewer pressures.
More reps.
Your goal isn’t to out-scheme every opponent. It’s to build defenders who understand leverage, pursuit, tackling, and alignment discipline.
If your defensive system allows you to rep the same run fits from multiple looks, you’re maximizing development.
If your multiplicity forces constant re-teaching, you’re sacrificing reps.
And reps are gold at the sub-varsity level.
Circling Back: Think Like an OC
When I sit down to design a defensive package now, I ask myself:
“If I were an offensive coordinator, how would I build this?”
The answer is always the same:
Start with a core idea.
Keep the rules consistent.
Change the presentation, not the foundation.
Protect your base with structure.
Add tags without rewriting the system.
Defensive multiplicity should feel like formation variation on offense.
Your players shouldn’t feel panic when you call a different front. They should think:
“Same rules. New picture.”
That confidence is everything at the JV level.
Because at the end of the day, our job isn’t to create the most complex defensive call sheet in the league.
It’s to develop defenders who can think fast, play physical, and carry a clear understanding of structure to the varsity level.
Teach it like a progression
Build it like an OC.
Rep it like a base play.
And let multiplicity be an illusion for opponents—not a burden for your players.
