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Handling a Toxic High-Performer

When a member delivers excellent results but destroys team morale, separate performance from behavior via a clear standard and a direct honest conversation.

35 min Advanced

Goal

Confront the hardest leadership dilemma: managing a high performer who is behaviorally toxic, without silent tolerance that costs the team more than the individual contributes.

Steps

1

Document precisely two specific behaviors (not a general impression) that actually harmed the team: date, situation, tangible impact on another person.

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Expected Outcome

Immediate

The toxic star hears an unambiguous message that the behavior is documented and rejected, not a passing complaint that can be ignored.

Evidence base

School: Organizational Behavior / Toxic Employee Research

Founders: Dylan Minor · Michael Housman (2015)

Dylan Minor and Michael Housman's study (Harvard Business School, 2015) found avoiding one toxic employee saves an organization more than a high performer adds, because the collective cost of toxicity (resignations, others' reduced performance) far exceeds the individual's contribution.

Frequently asked questions

How long does "Handling a Toxic High-Performer" take?

This exercise takes about 35 minutes, practiced solo in a Inner dialogue format.

When will I notice the effect of "Handling a Toxic High-Performer"?

The toxic star hears an unambiguous message that the behavior is documented and rejected, not a passing complaint that can be ignored. In the short term: Within weeks, the team notices you actually acted, raising their trust that leadership doesn't overlook toxicity for the sake of performance.

Is "Handling a Toxic High-Performer" evidence-based?

Yes — it draws on Organizational Behavior / Toxic Employee Research (Dylan Minor, Michael Housman (2015)). Dylan Minor and Michael Housman's study (Harvard Business School, 2015) found avoiding one toxic employee saves an organization more than a high performer adds, because the collective cost of toxicity (resignations, others' reduced performance) far exceeds the individual's contribution.

Is "Handling a Toxic High-Performer" suitable for beginners?

Its difficulty level is: Advanced. No external tools required — it can be practiced directly inside the app.

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