Most coaching challenges involve players. Some involve the coach’s own decision-making. A few involve parents in a direct conversation that can be prepared for.

And occasionally the hardest thing on a team has nothing to do with the game: two families just don’t get along.

Different personalities. Different communication styles. History that predates your program, a conflict from a previous team or from the school or just from the fact that some adults don’t mix. You didn’t create it and you can’t fully fix it. You’re the coach of their children, not a mediator, and the season runs for several more months.

Left alone, these tensions tend to grow. A sideline comment lands wrong. An exchange after a game gets retold at home with editorial additions. One family forms a view of the other that makes every interaction on the sideline feel charged. The players often pick this up faster than the parents realize, because kids are watching their parents during games and they read the body language and the tone.

This affects your team. That makes it your problem, even if you didn’t cause it.

The first principle is to stay focused on the mission. This team exists for the players. Every decision you make about how to handle parent dynamics goes through that filter: what serves the players? Not what resolves the interpersonal history, not what makes the most uncomfortable parent feel better, but what creates the best environment for the kids. That filter makes a lot of decisions easier.

Don’t take sides. This sounds obvious and it’s harder in practice than it sounds, because usually one family is easier to deal with than the other, and your natural sympathies will develop over the course of a season. You can have private opinions about who handled which situation better. Keep them private. The moment you signal a preference, even subtly, you’ve made the situation worse. The family who feels you’ve sided against them becomes adversarial in ways that spill into everything else.

Listen to both when they come to you with grievances about the other. Keep the conversation focused on what you can actually address: behavior during practices and games, interaction around players, things that happen within your program. You are not able to adjudicate the history from a previous team or whatever happened at school three months ago. “I wasn’t there for that, so I can’t speak to it” is a complete and honest answer. “Here’s what I need from both families within our program” is where your authority lives.

Address team impact directly and specifically. Families don’t have to like each other. They do have to behave appropriately around players. Those are two different things, and the second one is the one you can hold them to. “What happened at the last game was visible to the players and it’s not the environment I’m running” is a conversation you can have. “I need you two to get along” is not, because it’s neither achievable nor your job.

Don’t become a communication channel between the families. If family A tells you something about family B and the implication is that you should convey it or act on it, be careful. You’re not a go-between. If family A has an issue with family B, the conversation they need to have is with family B, or the issue is something that gets addressed through you at the program level, not through you as a messenger. The moment you start carrying information between parties, you’re part of the conflict.

Build community early in the season before conflict has a chance to develop. Families who have positive shared experiences, a preseason meeting where introductions happen and people feel welcomed, a snack sign-up that requires coordination, volunteer roles that put parents from different families working alongside each other, give each other more grace when tensions arise. Not unlimited grace, but more. The community that never formed has no relational bank account to draw from when something goes sideways.

When the conflict is escalating and affecting the sideline consistently, there’s a conversation to have with both families separately and then together if necessary. The sequence matters: private first, then joint only if separate conversations don’t produce change, and only if you’re confident the joint conversation won’t make it worse. Some families are not ready for a productive joint conversation. Knowing when to skip that step is judgment you’ll develop over time.

For parent-coaches specifically: you’re also a parent in the group, which complicates the authority position. Your relationships with the other parents are more informal, the social boundary between coach and parent is blurrier, and the history goes back further for most of the families involved. All of this is real. It doesn’t change the approach, but it means you’ll need to be more deliberate about holding the coach role rather than letting it collapse into just another parent in the mix.

The goal is not a team where everyone likes each other. That’s nice when it happens and irrelevant when it doesn’t. The goal is a team where everyone behaves appropriately around the players, where the coaching environment is stable enough that the kids can concentrate on playing, and where the adults’ conflicts stay in the adult world rather than landing in the middle of practice.

Most of the time, clear expectations stated early and held consistently get you there. You set the standard, you hold it, you don’t take sides, and you keep pointing everyone back to what matters.

The kids. The season. The reason anyone is here at all.

The timing of your intervention matters. Addressing the conflict immediately after a charged moment, in the parking lot with both families still there, is almost always the wrong move. Everyone is elevated. The conversation that happens in that state rarely resolves anything and often escalates it. Give it a day. Contact each family separately and privately, and have the conversation with a few hours of distance between the moment and the message.

The framing of that conversation also matters. “I need to talk to you about what happened” sounds like a disciplinary meeting and puts people on the defensive. “I want to make sure we’re set up for the rest of the season” is forward-looking and less charged. The goal is not to adjudicate what happened. The goal is to establish what comes next. Focus on that.

There’s also a version of this situation that isn’t actually about two families disliking each other, it’s about one family behaving inappropriately and the other family reacting to it. These look similar on the surface and require different responses. The first situation calls for the neutral, both-sides approach described above. The second situation calls for a direct conversation with the family whose behavior is the source, held clearly and without false equivalence. Treating them as symmetric problems when they aren’t is unfair to the family that’s on the receiving end and ineffective as a resolution.

Be honest with yourself about which situation you’re in.

For the longer arc of the season: conflict between families tends to plateau when both sides have had a clear, private conversation with the coach and feel heard. Not agreed with, heard. The family that feels like you understand their perspective, even if you didn’t validate every point they made, is much less likely to escalate on the sideline. The one that feels dismissed keeps escalating because they’re still trying to be heard.

You don’t have to solve the interpersonal history. You don’t have to make two people who don’t like each other friends. You have to make the sideline functional and the practice environment stable for the players. That’s a much more achievable goal, and most of the time it’s achievable within a week if you handle the conversations well.

The players are watching how you handle this too. They’re watching whether the adults in their program can manage conflict with some dignity. What they see from you when things are difficult is as instructive as anything you say about character during a calm practice.

Handle it well. That’s the coaching.