There's One Person Poisoning the Team — and Nothing Is Being Done

Everyone knows who it is.

You don't need to describe the person in detail, because the people you work with would recognise the description immediately. The one who poisons conversations with a particular kind of negativity — not the honest, useful kind that identifies real problems, but the corrosive kind that makes everything feel harder and less worth doing. The one who undermines colleagues in ways that are always just deniable enough. The one who creates a social weather system around themselves that everyone else has to navigate, every day, in addition to doing their actual work.

You have watched good people become quieter. You have seen ideas go unspoken in meetings because the room is not safe enough to speak them. You have noticed that the energy required just to manage the presence of this person is energy that is not going into the work.

And the part that is perhaps most frustrating: nothing is being done.

Why organisations tolerate what they should not

The most common reaction to a toxic team member, from the outside, is bafflement. The situation is obvious. The impact is clear. The solution seems straightforward. Why does it persist?

The answer, almost always, is that the situation is less straightforward than it appears — not because the toxicity is ambiguous, but because the organisational dynamics around it are complicated.

The toxic team member often has something the organisation values: technical skill, client relationships, institutional knowledge, a relationship with leadership that predates the current configuration. Removing them carries a cost that the organisation is, at some level, calculating against the cost of keeping them. And because the harm they cause is distributed — spread across many people in the form of reduced morale, lower output, higher turnover — while the value they provide is concentrated and visible, the calculation often comes out wrong.

There is also the problem of documentation. The harm caused by a toxic team member is often difficult to quantify in the ways that organisations require before they act. Low morale is not a line item. Conversations that didn't happen, ideas that weren't shared, people who quietly decided to start looking elsewhere — these do not appear in any report. The person causing the harm has learned, consciously or not, to operate in the grey zone between what is clearly unacceptable and what can be formally addressed.

And then there is the most uncomfortable explanation of all: sometimes nothing is being done because the person in a position to do something does not fully understand the impact, or does not want to, or has a relationship with the toxic team member that makes action feel personally costly in a way that the harm to the team does not.

What you are actually dealing with

It is worth being precise about what type of situation you are in, because the options available to you depend significantly on the answer.

If you are a peer — someone at the same level as the toxic team member, with no formal authority over the situation — your options are more limited than they may feel. You cannot fire someone, manage them out, or impose consequences. What you can do is manage your own relationship with them, build coalition with others who are affected, and — carefully, with documentation — bring the impact to the attention of someone who does have the authority to act.

If you are a manager or leader who is responsible for this team, the situation is different. The question is not what you can do — you have the authority to act — but what is stopping you from doing it. The answer to that question is worth examining honestly, because the longer a toxic dynamic is allowed to persist under your watch, the more it becomes a statement about your leadership, not just their behaviour.

What you can actually do

For peers, the most effective approach tends to involve two parallel tracks.

The first is personal: managing your own exposure to the toxic dynamic. This means being deliberate about which interactions you engage in directly, which you route around, and how much of the social weather system you allow to affect your own state. You cannot control what this person does. You can control how much access they have to your energy and your equilibrium.

The second is collective: recognising that you are almost certainly not the only person affected, and that the people around you may be waiting for someone to name what is happening clearly and calmly, without drama or accusation. A quiet, factual conversation with a colleague — "I've noticed this dynamic, I wonder if you've seen it too" — can be the beginning of a shared understanding that eventually supports collective action.

For managers, the most important thing is to stop waiting for the situation to resolve itself. Toxic dynamics do not self-correct. They calcify. The team members who are most affected — your best people, almost certainly — are making decisions about whether to stay based partly on whether they believe the situation will change. Every month it doesn't change is a month in which that calculation moves in the wrong direction.

Acting on a toxic team member is uncomfortable. It requires difficult conversations, careful documentation, and a willingness to accept short-term disruption for long-term health. But the alternative — a team that has organised itself around managing the presence of one person, rather than doing its actual work — is a cost that tends to be invisible until it becomes impossible to ignore.

The thing nobody says out loud

There is something that tends to go unsaid in these conversations, because it is uncomfortable and because saying it can feel like giving up.

Sometimes the toxic team member is not going to be dealt with. Not because the organisation lacks the ability, but because the will is not there — because the calculation has been made, implicitly or explicitly, that the cost of action outweighs the cost of inaction. In that case, the question is not how to fix the situation. The question is what you are going to do about the fact that the situation is not going to be fixed.

This is not a comfortable question. But it is an honest one. And the answer to it — whether it is to stay and manage, to escalate through different channels, or to make a decision about whether this is the right environment for you — is something that is worth arriving at clearly rather than allowing the situation to drift indefinitely.

A different angle on this moment

Here is something worth considering: the presence of a toxic team member reveals something about every other person in the system — including you.

How you respond to a situation like this — whether you speak up or stay quiet, whether you manage your own relationship with it or allow it to consume you, whether you hold onto your own standards in an environment that is making that difficult — is not just a reaction to their behaviour. It is a statement about who you are under pressure.

That is not a comfortable frame. But it is a useful one, because it returns some agency to a situation that can feel entirely passive. You cannot control what they do. But what you do in response is entirely yours.

MEETONESELF is designed for situations where the problem is clear but the path through it isn't — where the field around you has become complicated enough that a structured view of it is worth more than another round of frustrated analysis.