Some knowledge only becomes visible when it's gone.
Every membership organisation has people who seem to know absolutely everything. So, what happens when they leave?
They're the ones who remember why a particular policy was introduced fifteen years ago, who know which members need a slightly different approach, who understand the history behind a difficult stakeholder relationship and who can usually answer a complicated question without having to look anything up.
They know the organisation, the industry it represents, the people involved and all the little details that make things work.
And quite often, they've been doing it for years.
But what happens when one of those people decides to retire, move on or simply take their career in a different direction?
It's a question that deserves more attention across the membership sector, particularly as organisations think about succession planning, workforce development and the skills they will need over the next few years. Because when someone with twenty years of specialist experience leaves, you're not simply losing an employee. You could be losing two decades of relationships, judgement, understanding and knowledge that nobody else in the organisation quite possesses.
The knowledge you don't realise you're relying on
One of the interesting things about long-serving employees is that the value of their experience can become almost invisible, particularly when their knowledge is so familiar to colleagues that nobody thinks to question where it comes from.
Consider a senior membership professional who has spent years developing relationships with member organisations, understanding their commercial pressures and knowing exactly how to approach difficult conversations.
Or a policy specialist who understands the history of an industry, has built trusted relationships with government departments and knows why certain regulatory issues remain sensitive.
It could equally be an experienced events professional who understands what makes a flagship conference commercially successful, or a finance director who knows the background to every significant financial decision the organisation has made over the past decade.
These people often hold a remarkable amount of organisational knowledge, much of which has never been formally documented because it has developed gradually through experience, relationships and years of solving problems.
And while systems, processes and shared documents can capture some of that information, they cannot always replace the judgement that comes from having dealt with similar situations many times before.
Is succession planning becoming a bigger issue for membership organisations?
Our Future Skills Report 2026 found that 61% of respondents expressed concerns about leadership succession, suggesting this is already an important issue for organisations across the sector.
And while succession planning is often associated with chief executives and senior directors, the challenge can extend much further into organisations, particularly where smaller teams depend heavily on a handful of experienced specialists.
A membership organisation might have a clear plan for replacing its CEO, for example, but what about the policy manager who has been there for eighteen years, the head of membership who knows the organisation's largest members personally or the operations specialist who understands every system and process?
These roles may not always attract the same attention as executive appointments, but losing the knowledge attached to them can create significant disruption.
There is also the question of timing, because succession planning is considerably easier when an organisation has time to prepare, develop internal talent and transfer knowledge before someone leaves.
Unfortunately, that is not always how things happen.
Why replacing experience isn't as straightforward as replacing a job title
One of the challenges we see in specialist recruitment is that organisations can underestimate just how much knowledge sits behind a particular role until they begin looking for a replacement. On paper, a vacancy might appear to require membership management, stakeholder engagement, policy expertise or operational leadership, but the reality is often considerably more complex.
The previous employee may have developed an unusually strong understanding of a particular industry, built relationships that have taken years to establish or acquired specialist knowledge that is difficult to find outside the membership sector.
And while a capable new employee can certainly develop those strengths over time, it is important to recognise that replacing the responsibilities of a role is not necessarily the same as replacing the experience of the person who held it.
This is particularly relevant for trade associations and professional bodies operating in highly specialised industries, where understanding the sector, its regulatory environment and the relationships between different stakeholders can be just as important as technical competence.
In our experience, that doesn't mean organisations should only recruit people who have already worked in exactly the same type of membership body, but it does mean being clear about which elements of experience are essential from day one and which can realistically be developed.
Could your next generation of leaders already be working for you?
Succession planning does not always need to begin with an external recruitment exercise, and in many cases, one of the most valuable things an organisation can do is look more carefully at the people it already employs.
There may be talented membership professionals who have developed strong commercial instincts, policy specialists with leadership potential or operational employees who understand the organisation far more deeply than their current job title suggests.
But unless organisations actively identify and develop those capabilities, there is a risk that valuable internal talent remains overlooked while future leadership requirements continue to grow.
Giving people opportunities to work across departments, take responsibility for projects, build relationships with senior stakeholders or develop commercial and strategic skills can help create a stronger pipeline of future leaders.
It can also make a real difference to retention, particularly for ambitious employees who want to see that there is a future for them within the organisation.
However, internal recruitment brings its own challenges, particularly when it comes to maintaining objectivity.
When a candidate is already well known, it can be difficult to separate familiarity, existing relationships and perceptions of past performance from an impartial assessment of their suitability for a more senior role. There is also the risk of overlooking external candidates who may bring different experience, perspectives or skills that the organisation needs for its next stage of development.
This is where independent, specialist recruitment support can be particularly valuable, helping organisations assess internal and external candidates against the same clear criteria, challenge unconscious bias and ensure appointments are based on the skills, experience and strengths needed for the role.
After all, membership organisations are expected to demonstrate fairness, transparency and good governance to their members, so surely those same principles should apply when appointing their own leaders?
The aim isn't to favour an external candidate over an internal one, but to make sure the best person is appointed through a fair, robust and objective process, with everyone given the same opportunity to demonstrate what they can bring to the organisation.
Sometimes the next person shouldn't be a carbon copy
There is another interesting side to succession planning that is easy to overlook.
When someone has been successful in a role for many years, the natural instinct is often to look for someone with exactly the same background, experience and approach.
But organisations change, industries evolve and the skills needed to succeed in a role today may be quite different from those required when the previous employee was appointed.
A membership director who built their career primarily around relationship management, for example, may be leaving behind a role that now requires stronger commercial strategy, data analysis and digital engagement expertise.
Similarly, a long-serving policy leader may have developed exceptional sector knowledge, but their successor could also need experience in wider public affairs, stakeholder communications or emerging regulatory challenges.
The aim should not necessarily be to find someone identical to the person leaving, but to understand what made that individual valuable while also considering what the organisation will need next.
The best succession plans protect the knowledge that matters without assuming everything else needs to stay the same.
How can organisations avoid losing years of knowledge overnight?
One of the simplest ways to reduce the risk is to start conversations earlier, particularly where senior employees or long-serving specialists may be approaching retirement or considering a change.
That might involve identifying important relationships, documenting specialist processes, introducing colleagues to key stakeholders or creating opportunities for less experienced employees to work alongside those with deeper sector knowledge.
For some organisations, bringing in a successor before the existing employee leaves may be worth considering, even where the overlap creates a short-term additional cost, because the opportunity to transfer knowledge directly can be difficult to recreate afterwards.
Temporary and interim recruitment can also play an important role, particularly when an unexpected departure leaves an organisation needing experienced leadership or specialist support while it considers its longer-term requirements.
An interim appointment can provide continuity, help maintain important relationships and give an organisation time to recruit carefully rather than making a permanent decision under unnecessary pressure.
The important thing is to recognise that succession planning is not simply an HR exercise, but a practical way of protecting organisational knowledge, member relationships and future performance.
Finding the right balance between sector experience and fresh thinking
At Membership Bespoke, we've spent more than fifteen years specialising in recruitment for membership organisations, including trade associations, professional bodies, regulatory organisations and other membership-led organisations, as well as non-legal appointments within barristers' chambers.
That specialist focus means we understand why certain roles can be particularly difficult to replace, especially when organisations need people who combine technical capability with an understanding of how membership bodies operate and the industries or professions they represent.
It also means we can help organisations think carefully about which skills and experience really matter, whether there is scope to bring in talent from outside the sector and how a recruitment brief might need to evolve to reflect future priorities.
Sometimes the right person will be someone who has spent years working in membership organisations, while in other cases, a candidate with experience from a different environment may bring valuable commercial, digital or leadership capabilities.
What matters is understanding the organisation, its members, its culture and the outcomes the appointment needs to achieve.
Don't wait until someone hands in their notice
Perhaps the biggest challenge with succession planning is that it rarely feels urgent until something happens.
When experienced employees are performing well, relationships are strong and everything appears to be running smoothly, it can be easy to assume there will be plenty of time to think about what happens next.
But the people who hold the greatest amount of organisational knowledge are often the very people whose contribution is hardest to replace at short notice.
And while no organisation can prepare for every unexpected departure, understanding where critical knowledge sits, developing future talent and thinking ahead about the skills required can make a significant difference when change eventually comes.
So perhaps it's worth asking a question at your next leadership meeting.
If one of your most experienced people left tomorrow, what would you lose that isn't written down anywhere?
The answer might tell you rather a lot about where your next succession planning conversation needs to begin.
At Membership Bespoke, we support membership organisations with specialist permanent, temporary, interim and senior leadership recruitment, helping them find people who bring not only the right experience for today, but the capabilities to support their organisation as it evolves. And if you're beginning to think about succession planning, future leadership requirements or a particularly difficult-to-replace role, we'd be very happy to have a conversation.