🧠 A Step-by-Step Guide to Building a Principles-Based Offense & Defense in Lacrosse

🤔If you’ve ever said…

“We look great in drills but not in games”
“Our players’ skills are solid, but too often make the wrong decisions”
“We give up too many high % shots on defense, or offensively aren’t getting enough high % shots”

You’re not alone.

Most teams don’t struggle because of effort or talent, they struggle because they don’t have a shared understanding of how to play the game.

That’s where a principles-based system changes everything.

🎯 What is a Principles-Based System?

A principles-based system is simple:

It’s not about running plays.
It’s about giving players guidelines that help them make decisions in real time.

Instead of telling players exactly what to do…

You give them what they need to become problem solvers:

What to look for
How to react
Why it works

Principles give players the why, not just the what.

Why This Works

Lacrosse is chaotic. It’s fast. It’s unpredictable. I often tell our players that its “Controlled Chaos”

Principles work because they:

Build decision-makers, not robots
Transfer from practice → games
Speed up play without overthinking
Give players confidence under pressure and more freedom to be creative

I recently heard a top 10 Division 1 Basketball Coach say: “I’d rather have a player who can make a play under pressure, rather than a set play that can fall apart”

The best teams don’t run better plays, they make better decisions.

*How to Build Your Principles Based System 👇

Define Your Core Principles Per Side (Keep it to 3–5)

This is the foundation.

Example Offensive Principles:

Create Advantages Using Triggers (2 Player Game, Exploiting matchups, Dodging & Attacking Space)
Get Dominos, When we get that advantage, and defense has to slide/rotate
Maintain spacing and Open up Scoring areas (Middle of the field)
Gold Medal Shots. that are 5-10 yard shots in the crease area

Example Defensive Principles:

Protect the House (Scoring area)
Entry & Exit Pressure
When slide and supporting, Be early, not late
Communicate through action
Force all dodgers to sidelines & Force low-percentage shots

👉 Simple. Clear. Repeatable.

🚫 Common Mistakes

This is where teams get stuck:

Too many principles
- If you have 8–10 “principles”… you don’t have principles—you have noise.
Teaching plays before understanding
Stopping every rep to correct
No connection between drills and games
Ignoring defensive principles

If everything is important, nothing is.

Turn Principles into Constraints

You don’t teach principles by talking, you teach them by designing the environment.

Instead of saying: “Move the ball faster” You create a drill where they have to.

If playing all even, instead of playing a just a small area 4v4 Game with free play, Add in constraints:

Examples:

Every dodge must initiate off a pick, and defense must cover with a double team
- If your offense needs to learn to play with pressure, the kids will need to work through this and find solutions (Does the pick player slip? Flare out? What about other teammates off ball

Defense gets 2 points for intercepted skip pass
- Put your players in a live game where they need to be thinking of this at all times!

Offense 2 points with a goal off a pick play (if this is a big part of your offense)
- Find multiple coverage solutions by repping these out

Offense 2 point for gold medal goals
- Our offense should always be thinking, how can we get these gold medal shots? they will find ways to dodge to the scoring area, or find teammates cutting through

Constraints are how principles come to life.

STEP 3: Build with Drills and Small-Sided Games

If players can’t see it, they can’t learn it.

Start small so the game becomes clear.

High School Progression:

3v2 Drills → decision making
4v4 Drills → support + spacing
2 & 3 player games & Drills (Picks)
5v5+1 → full team concepts with occasional unsettled and uneven opportunities

Scale the game so players can actually understand it.

Youth Progression:

2v1 Drills → decision making
3v3 Drills and Games → support + spacing
3v2 Drills and Games → decision making + spacing + rotation
4v4+1 → full team concepts

Scale the game so players can actually understand it.

The Rabbit Game

Play full field for high school, youth make into a smaller field and play 4v4 + 1

While some constraints are already in this game, you can add in those other ideas (initiate with picks, defense interceptions, etc..) to raise the bar further

View Drill Page

Coach with Questions, Not Commands

The fastest way to kill learning? Over coaching and talking too much.

Instead of:
“Cut here”
“Move it there”

Call a timeout, or pause the game/drill and as questions:

“What did the defense give you?”
“Where was the space?”
“What was your next option?”

Simple cues:

“Where’s your support?”
“Did the defense slide/rotate?”

Let players discover, then reinforce.

🧱 Add Structure LAST (Not First)

This is backwards from how most programs do it.

Don’t start with:

1-4-1
2-2-2
Set plays

Start with principles. Then layer structure on top.

Now your system works inside any formation:

1-4-1
Pairs
Motion
Invert

Structure should support principles, not replace them.

🎯 Align Your Practices

Every drill should answer one question:

👉 “What principle are we training?”

What TO do:

Game-like reps
Constraints built in
Decision-making required

If it doesn’t transfer to a game—it’s just activity.

What to limit:

Line drills
No decisions
No pressure

Note: There is still a place in practice for stick work and high-volume reps. I’m a big believer that we need to build confidence in catching and throwing, and the only way to do that is through repetition. It’s essential. Players should also be doing a lot of stick work outside of practice, but we also understand that not every player has the same time, space, or resources as their teammates.

If you are going to run isolated skill drills, you can still build in decision-making and movement so players aren’t just standing in lines passing and catching. Add motion, add pressure, and add simple choices so even your stick work becomes more game-like.

Here is a great drill that works on passing and catching, and adds in some decision making

View Drill Page

🔄 How Offense & Defense Connect

This is a big one.

Your offense and defense should speak the same language.

Example:

Offense:
👉 Move it faster than the defense rotates

Defense:
👉 Be early and communicate

Now both sides are training the same game.

Good offense forces mistakes
Good defense removes options

An easy way to build team IQ for both the offense and defense, is playing in uneven situations, WHY you ask?

The offense always has an advantage, and they need to move the ball to the open teammate or where slides are coming from. This is a KEY element when it comes to decision making, in all even situations when we get the defense to slide. Moving the ball to the next teammate keeps the defense rotating and ultimately a best shot on goal
The defense constantly has to rotate. We need to cover the ball, and support backside so the defense is constantly supporting off ball and sliding – recovering. This is ESSENTIAL to create a strong team defense.

🧠 Final Takeaway

The goal isn’t to control players. It’s to prepare them.

To read the game.
To solve problems.
To play fast and promote creativity

The best teams aren’t the most scripted, they’re the most adaptable.

Keep it simple:

Fewer rules
Clear principles
Game-like training

That’s how you build a team that performs when it matters.