Dear Growth Guru… My Top Performer is Toxic, but They’re Hitting Target – Help!

Welcome to the first edition of Ask the Growth Guru. We’re diving straight into the deep end with a classic leadership nightmare: the “Brilliant Nightmare.” It’s the age-old battle between the bottom line and the office atmosphere. Let’s see if we can save this culture before it hits the floor.

Dear Growth Guru,

I have a massive problem. My ‘Star Seller’ is consistently hitting 120% of their target. On paper, they’re a hero. In the office, they are a horror show. They are arrogant, they ignore our CRM processes, and they’ve made our junior reps feel like they don’t belong.

My CEO says ‘leave them to it,’ but the rest of the team is demotivated. Do I keep the revenue or protect the culture?”

Thanks,

Caught in the Crossfire

Dear Caught in the Crossfire,

Culture isn’t what you put on the posters in the lobby; it’s the worst behaviour you’re willing to tolerate. By letting your top performer run rogue, you aren’t “leaving them to it,” you are implicitly telling the rest of your team that their well-being is worth less than a commission cheque.

A “Toxic Star” creates a culture debt that eventually defaults. You might be hitting your numbers today, but you could be losing on the “hidden costs”: high staff turnover, low morale, and a fragmented pipeline. Try these three fixes…

The ‘Come to Growth’ Talk: Sit them down. Be clear: “You are a great seller, but you are currently a failing teammate.” Make 50% of their bonus contingent on “Values & Behaviours” rather than just the raw number.

The CEO Alignment: Explain to your boss that the cost of replacing three disgruntled junior reps (roughly 1.5x their salaries) outweighs the over-performance of one toxic one.

The Succession Plan: Start a “quiet” recruitment search now. No one, no matter how many deals they close, should be unfireable.

The Guru Summary: If you don’t fire the nightmare, eventually the good people will fire you.