So you're standing on the sideline, clipboard in hand, watching your local footy team run out for the first half. You've got a squad sheet, but only a limited number of players can be on the field at any time. How do you manage that bench effectively? Whether you're a first-time coach, a parent helping out at your kid's club, or a fan trying to understand why coaches make those late-game changes, you've come to the right place.

This article will walk you through interchange and substitution rules step by step. By the end, you'll know exactly how to use your bench, avoid costly penalties, and keep your team fresh for the full game. Let's dive in.

What You'll Need

Before we get into the nitty-gritty, here's what you'll need to follow along:

A squad sheet – Know your players and who is starting versus on the bench.
A basic understanding of positions – Fullback, wingers, centres, halves, forwards, and hooker. Don't worry, we'll keep it simple.
Access to the official rules – The rulebook is online, but I'll summarise the key bits here.
A stopwatch or game clock – Interchange timing matters, especially when the clock stops for tries and penalties.
A calm head – Bench management can get frantic, especially in tight games.

Step 1: Understand the Difference Between Interchange and Substitution

First things first: an interchange is when a player leaves the field and another comes on. A substitution is when a player is replaced and cannot return. Here's the key distinction:

Interchange – Players can come back on. This is what you'll do most often.
Substitution – A permanent replacement. This is rare and usually only happens due to injury or if a player is sent off. Once substituted, that player cannot return.

Pro tip: In junior and local footy, interchange rules might differ (e.g., unlimited interchanges in some comps). Always check your local league's rules before game day.

Step 2: Know Your Bench Size

Your bench size is limited. You can't have more players than allowed in your match-day squad. For grassroots footy, bench sizes vary (often 4-6 players), but the principle stays the same: you're managing limited resources.

Common mistake: Trying to use all your interchanges early. If you blow through them too quickly, you're stuck with tired players later. The game is often won in the last quarter, not the first.

Step 3: Plan Your Interchange Strategy Before the Game

This is where the magic happens. Good coaches don't just wing it. They plan interchanges around:

Player positions – Forwards (props, second rowers, locks) typically need more rest than backs.
Game situation – If you're chasing points, you might keep attacking players on. If you're defending a lead, bring on fresh defenders.
Weather and field conditions – Hot days mean more interchanges for hydration and fatigue management.

Example strategy for a typical team:

Starters: 1-13 (fullback to lock)
Interchange: Utility back/hooker, middle forwards, edge forward or extra back
Rotation plan: Interchange props at 20 minutes, second rowers at 25 minutes, then rotate again at halftime.

Pro tip: Always have a "spine" player (fullback, halves, hooker) on the bench if possible. They control the game's tempo. Plan their rest carefully.

Step 4: Execute the Interchange Properly

When a player comes off, they must:

Leave the field immediately – No dawdling. The interchange gate is on the sideline near halfway.
Tag the incoming player – The player coming on must physically touch the player coming off. This prevents accidental extra players on the field.
Report to the interchange official – The official records the interchange. In local footy, you might have a volunteer doing this.

Common mistake: The "too many men" penalty. If you have too many players on the field, your team gets a penalty. This is a killer in tight games. Always count heads before the next play.

Step 5: Manage Injury Interchanges

If a player gets injured, you can still use an interchange. But here's the catch: if the injury is serious (e.g., concussion or broken bone), the player might not return. Concussion protocols often require a stand-down period, so that player is effectively substituted.

For grassroots: If a player is injured, take them off immediately. Don't risk their health. Use an interchange to bring on a fresh player. If you've used all your interchanges, you're stuck with fewer players until the injured player recovers or the game ends.

Step 6: Use Your Bench for Tactical Changes

Sometimes interchanges aren't just about fatigue. They're about changing the game. Here are some tactical uses:

Bring on a fresh forward to dominate the ruck – In the last 10 minutes, tired defences struggle against big, fresh forwards.
Swap a half who's struggling – Bring on a utility back who can spark the attack.
Defensive reshuffle – If your edge is getting exposed, swap a second rower for a faster defender.

Pro tip: Watch how top teams use their bench. They might use more interchanges early to match intensity against strong opponents. Against weaker teams, they might save interchanges for later.

Step 7: Know the Sin Bin and Send-Off Rules

This ties into interchange management. If a player gets sin-binned (temporarily off), you can't replace them. You play with fewer players. If a player gets sent off (permanent), you can substitute them after a period, but you still play short for that time.

Key point: If you have a player sin-binned, you might need to adjust your interchange plan. For example, if a forward gets binned, you'll need to keep other forwards on longer. This is where having a versatile bench player (like a utility) helps.

Step 8: Track Your Interchanges During the Game

This is easier said than done, especially when the game is fast. Here's a simple system:

Use a whiteboard or notepad – Mark off interchanges as they happen.
Assign a team member – If you're coaching, delegate interchange tracking to an assistant or a parent. Don't try to do it yourself while calling plays.
Check at halftime – You should have used roughly half your interchanges. If you've used too many, you're in trouble for the second half.

Common mistake: Losing track and using too many interchanges early. Teams that use all their interchanges too soon often lose steam in the final quarter.

Step 9: Prepare for the Final Quarter

This is where the game is won or lost. The last quarter is brutal. Here's how to manage your bench:

Save at least a couple of interchanges for the final quarter – Fresh legs make a huge difference.
Use your best impact players last – If you have a game-breaking forward on the bench, bring them on around the 60th minute.
Don't panic – If you're down by 10 points, don't burn interchanges trying to chase points. Stay disciplined.

Pro tip: Watch how top teams manage their bench. They often bring on fresh forwards around the 55th minute to dominate the ruck and tire out the opposition.

Step 10: Review and Adjust for Next Game

After the game, review your interchange usage. Ask yourself:

Did I use all my interchanges? If not, why?
Were players too tired at the end?
Did I waste interchanges on players who didn't make an impact?
Could I have used a different bench rotation?

This is how you improve. Even the best coaches review their bench management after every game.

Pro Tips for Managing the Bench

Communicate with your players – Let them know when they're coming on and off. A confused player is a slow player.
Use water breaks wisely – Players can get hydration during stoppages. In local footy, use halftime to rehydrate and adjust your plan.
Know your players' limits – Some players can go 40 minutes straight; others need a break every 20. Adjust accordingly.
Don't forget the hooker – Hookers often play the full game, but they need rest too. If your hooker is struggling, use an interchange.
Practice interchanges at training – Run drills where players practice coming on and off quickly. This reduces errors on game day.

Common Mistakes to Avoid

Using interchanges too early – Save them for the second half.
Forgetting to count players – The "too many men" penalty is avoidable.
Ignoring the weather – Hot days require more interchanges for hydration.
Not having a plan B – If a key player gets injured, your interchange plan changes instantly.
Overthinking it – Sometimes, the simplest plan works best.

Checklist Summary

Here's your quick reference checklist for managing the bench:

Know the difference between interchange and substitution.
Confirm your bench size (check local rules).
Plan your interchange strategy before the game (based on positions, game situation, weather).
Execute interchanges properly (leave field immediately, tag player, report to official).
Manage injury interchanges safely (don't risk player health).
Use interchanges for tactical changes (fresh forwards, defensive reshuffles).
Understand sin bin and send-off rules (adjust plan accordingly).
Track interchanges during the game (whiteboard, delegate).
Save interchanges for the final quarter.
Review your interchange usage after the game.

Final Word

Managing the bench isn't rocket science, but it does take practice and discipline. Whether you're coaching a local club or just trying to understand why coaches make those late-game swaps, these steps will help you get it right.

Remember, the goal is to keep your team fresh, avoid penalties, and give yourself the best chance to win. And if you're ever confused about sin bins or other rules, check out our other guides.

Now get out there, manage that bench like a pro, and enjoy the game.

Managing Your Bench: A Guide to Interchange and Substitution Rules