How to build a succession plan before you need one
Published: September 2026 Category: People Strategy | Business Continuity Read time: 5 minutes
The Person You Can’t Afford to Lose
Every business has one. The person who just knows how everything works. They’ve been there for years — maybe over a decade — and somewhere along the way they became the institutional memory of the business. They know the clients, the quirks, the processes, and all the things that were never written down because they were always just there to handle them.
They’re brilliant. Dependable. Irreplaceable.
And that last word is where the problem starts.
When One Person Holds Everything Together
In a growing business, it’s easy to let critical knowledge and responsibility concentrate in your most reliable people. It happens gradually, usually without anyone deciding it should. They’re good, so more gets added to their plate. They handle it, so it stays there. Before long, they’re not just doing a job — they’re the load-bearing wall the whole operation rests on.
This becomes visible in small ways first: the anxiety when they take annual leave, the calls they get on their days off, the slight drop in standards when they’re not around. Things that are manageable — until they’re not.
Succession isn’t just about someone leaving. It’s about what happens when your key person is off sick for three weeks. Or takes a well-earned holiday. Or needs to step back to deal with something personal. Or — eventually, inevitably — decides to move on.
The businesses that handle these moments well aren’t lucky. They planned for them.
What It Actually Costs You
Most business owners know, on some level, that key person dependency is a risk. But it rarely feels urgent — because the person is still there. So it stays on the list of things to deal with later.
Later has a way of arriving without warning.
When it does, the cost is immediate. Clients who expect a certain level of service don’t get it. Internal processes that relied on tribal knowledge start to break down. Other members of the team, suddenly without the guidance they depended on, make decisions they’re not ready to make — or escalate everything upwards to you.
The knock-on effect isn’t just operational. It damages client relationships, puts pressure on your whole team, and often lands squarely back with the business owner at exactly the moment you least want it to.
Beyond the operational risk, there’s a human cost too. The person at the centre of all this — the one who’s been holding it all together — often hasn’t been developed or supported in years, because they didn’t seem to need it. They’ve been too valuable to move, too busy to take time out, and too relied upon to think about what comes next. That’s not fair on them. And it’s not a sustainable way to run a business.
The Solution: Plan the Handover Before You Need One
Succession planning sounds corporate. It conjures images of board-level strategy documents in large organisations. But in reality, it’s a practical question every business of any size should be asking: if this person wasn’t here tomorrow, what would break — and what can we do now to prevent that?
Here’s how to approach it.
1. Identify your single points of failure
Start by mapping who holds what knowledge and responsibility in your business. Where is critical information stored — in a system, or in someone’s head? Which roles, if vacant, would cause the most disruption? This isn’t about being morbid. It’s about being honest.
Most businesses find the list is shorter than they feared — and more concentrated than they’d like.
2. Document what’s in people’s heads
The most underrated step in succession planning is knowledge capture. Processes, client preferences, supplier relationships, escalation routes — the things that experienced people do automatically, without thinking, that no one else knows how to do.
Getting this out of people’s heads and into structured documentation takes time. But it pays back every time someone is absent, and it’s essential groundwork for developing anyone who might step into the role.
3. Develop internal successors deliberately
Succession planning works best when it’s tied to individual development, not just business risk. Identify one or two people who could grow into a greater level of responsibility over time, and build their development around that.
This doesn’t have to mean a formal promotion pathway. It can start simply: shadowing, involvement in decisions, gradual increases in responsibility. The goal is to build someone’s capability and confidence over months — so that when cover is needed, it’s not a crisis.
4. Build cover into your normal operations
Don’t wait for an absence to discover who can cover what. Build overlap into your day-to-day by involving deputies in client relationships, cross-training across functions, and making sure at least two people understand every critical process.
The businesses that handle absence well aren’t the ones with the most elaborate plans. They’re the ones where knowledge and capability are deliberately shared as a matter of routine.
5. Have the conversation with your key people
People who have been in a role for a long time sometimes feel threatened by succession conversations — as if planning for their absence implies they’re on their way out. Done well, it’s the opposite. It’s an acknowledgement of how much they contribute, and an investment in ensuring that the business is built to sustain it.
Frame it honestly: you’re not planning for them to leave. You’re planning to protect what they’ve built.
How Coventina Can Help
Succession planning is one of those things that’s hard to prioritise when everything is running smoothly — and genuinely urgent when it isn’t. We help business owners get ahead of it, before it becomes a problem.
We work with you to:
Map where critical knowledge and responsibility sits in your business — and where you’re most exposed
Develop the people who could step into greater responsibility, with structured coaching and practical development that builds real capability
Design a succession framework that fits your business — practical, proportionate, and something your team can actually work within
We don’t produce documents that sit in a drawer. We build plans that work in real businesses — because that’s the only kind worth having.
Case Study: Fourteen Years of Knowledge in One Person’s Head
An engineering servicing business had a customer service manager who had been with the company for fourteen years. She knew everything: the long-standing clients and how they liked to be dealt with, the engineers’ schedules, the escalation history on every major account, and the informal processes that kept the operation running smoothly. She was exceptional at her job, and the business — and the MD — relied on her completely.
The problem surfaced when she booked two weeks’ annual leave for the first time in years. The cover arrangements were vague. The team struggled. Clients who expected a certain level of responsiveness weren’t getting it. The MD spent most of that fortnight fielding calls he hadn’t handled in years.
When she returned, nothing was said. But the MD knew the business had a problem — and that it had nothing to do with her performance.
We came in to help them build a practical succession framework for the customer service function. We started by working with the manager herself to document the processes, client information, and decision-making logic that existed almost entirely in her head. This alone took three structured sessions and produced more than the business had documented in its entire history.
From there, we identified a senior customer service advisor who had the potential to develop into a deputy role. We designed a six-month development plan for him — structured involvement in client escalations, regular coaching conversations, and a clear set of milestones that built his confidence and capability incrementally.
By the time the manager took her next holiday, the cover arrangements were solid. The deputy handled the two weeks without escalating a single issue to the MD. The team knew what to do, the clients received consistent service, and the manager came back to a business that had run without her — which, as she put it, felt like a relief rather than a threat.
The MD’s comment at the end of the project: “We should have done this years ago.”
Ready to Build Your Plan?
If your business is built around the knowledge of one or two key people — and you haven’t yet planned for what happens when they’re not there — now is the right time.
Book a free discovery call and let’s talk about where your business is most exposed and what a practical succession plan would look like.
Coventina Coaching works with micro to medium-sized business owners who are ready to build teams that perform, take ownership, and allow them to step back from the day-to-day. We work across the UK.
