🤝 Retention Compounds

We talk endlessly about who to hire. How to spot the right person, how to run the right interview loop, how to close the offer. But retaining and growing existing talent gets a fraction of the attention when it should be discussed as a moat.

In a company I’ve had the privilege to work with, I came across a team where 10% of the staff had been there over five years, and a high percentage sat in the 3-5 year range. It was the single biggest reason that team was highly successful and profitable; and still is.

The underlying philosophy maps closely to how businesses think about customers.

You spend money and time acquiring a new customer. Then more money making them successful. You only see actual profit if they stay past a break-even point. Churn before that is a loss. The only way a business wins long-term is by retaining customers well past break-even and expanding account value over time.

Hiring works the same way. A new team member costs you immense effort from everyone on the team, not just the hiring manager, and takes six months to two years before they’re self-sufficient in their role. High attrition means you keep paying the acquisition cost without ever collecting the return. Worse, every departure triggers another round of hiring, onboarding, and waiting. The losses keep compounding.

But so do the gains, if retention works. That’s what people don’t realise enough.

A new hire spends roughly their first six months absorbing tribal context; the unwritten knowledge that lets them handle 80% of their responsibilities without asking. The next phase, six months to two years, is where they start creating real value and establishing themselves. This is when most good hires earn their first promotion. They’ve proven they can do the job.

But the steep part of the curve is years two through five. Armed with deep institutional knowledge and hard-won awareness of how the company actually works, an individual becomes disproportionately productive. They take bigger bets. They make calls that can transform the business, not because they’re smarter than a new hire, but because they have the context and confidence to act on what they see. New hires, still trying to prove their worth and protect their position, rarely take those swings.

However, years two through five are also when attrition peaks. Boredom creeps in. The market starts reaching out to them. The desire for change is natural at this point. This is where leadership and culture face their real test right when the compounding is about to kick in. Can you show your best people the path to exponential growth? Can you make them want to stay because they see something here they can’t get anywhere else?

And this isn’t one-sided. For the compounding to be real, both sides have to invest. The individual needs a growth mindset, a willingness to take larger bets, and genuine care for the company and its customers. The company needs the clarity to see where each person’s talent fits best and the courage to put them in positions to succeed even when that means re-shuffling the existing org chart.

Retention is not a compensation but a compounding problem. Lose people before the curve steepens, and you never see the return. Keep them through it, and the value for both sides becomes hard to replicate.