Succession Planning Beyond the Hi-Po List: Build a Pipeline of People Who Are Ready

Succession planning often sounds more strategic than it actually is. Once a year, leaders review an organisation chart, identify a few “high-potential” employees and place their names next to critical roles. The plan is documented, the boxes are filled, and everyone moves on to the next priority.

The problem is that a name on a succession plan does not mean someone is ready to take over.

A person may have strong performance today but lack the experience to handle a larger role tomorrow. Another employee may have potential but has never had the opportunity to lead outside their usual function. And in some cases, the organisation may be relying heavily on one experienced employee whose knowledge has never been properly transferred.

This becomes a bigger risk when businesses are dealing with tighter labour markets, an ageing workforce and rapidly changing roles. Singapore’s Ministry of Manpower has highlighted the importance of maintaining the employability and capability of senior workers, while digitalisation and AI are also changing the skills organisations need. Succession planning therefore cannot focus only on replacing senior executives. It needs to protect the roles, knowledge and capabilities that are critical to keeping the business running and adapting to change.

The goal is not to predict exactly who will occupy a role three years from now. It is to make sure the organisation has enough capable people to respond when that role becomes vacant, changes significantly or suddenly becomes more important.

Start With the Role, Not the Person

A critical role is not necessarily the most senior or highest-paid position in the organisation. It could be an operations manager responsible for several sites, a technical specialist with highly concentrated knowledge, a customer-facing leader with important relationships, or a compliance role where a capability gap could create regulatory exposure.

To identify these roles, organisations can look at several factors: the impact of the role on revenue and operations, the scarcity of the required skills, the time it would take to develop a replacement, the amount of knowledge concentrated in one person, and the consequences of a sudden vacancy.

There is another question that is becoming increasingly important: will the role itself still look the same in the future?

AI, automation, digitalisation and changes in customer expectations can significantly reshape jobs. A successor who is perfectly prepared for today's responsibilities may not have the capabilities required when the role changes.

Succession planning should therefore look at both role criticality and future role requirements. Otherwise, organisations may spend years preparing people for a job that no longer exists in the same form.

Move Beyond the Single-Successor Mindset

Once critical roles have been identified, the next step is to stop treating succession as a one-person replacement exercise.

Organisations often create a succession chart that looks something like this: one critical role, one preferred successor and perhaps one backup. It may look reassuring, but it creates another form of concentration risk.

What happens if the identified successor leaves? What if they decide they do not want the role? What if their skills no longer match the role after a major business transformation?

Building readiness pools gives organisations more options.

The CIPD describes succession planning as identifying and developing talent for leadership and business-critical positions, with internal talent pools playing an important role. Instead of asking who the one “next person” is, organisations can identify several employees who could potentially move into a role over different time horizons.

One person might be ready within six months. Another may need two years of broader experience. A third may have strong technical capability but needs more exposure to people leadership.

That does not mean every person in the pool needs to follow exactly the same development plan. In fact, they should not.

The purpose of a talent pool is to create options while giving people development opportunities that match what they actually need to become ready.

Make Potential More Objective

The phrase “high potential” can be useful, but it can also become dangerously subjective.

If there are no clear criteria, potential can easily become associated with visibility, confidence, similarity to current leaders or simply having strong relationships with senior management.

That makes succession planning vulnerable to bias.

Instead, organisations should assess candidates against observable evidence. This might include their current performance, ability to learn new skills, adaptability, judgement, leadership behaviours, ability to work across functions and readiness to take on more complex responsibilities.

Future capability matters just as much as current performance.

For example, someone may be an excellent individual contributor but have limited experience influencing stakeholders across different functions. Another employee may not currently have the strongest technical knowledge but could demonstrate strong learning agility and the ability to navigate unfamiliar situations.

These differences matter when preparing people for future roles.

Clear criteria also make succession discussions more constructive. Rather than saying that someone has “high potential”, leaders can explain what the employee has already demonstrated, what capabilities are still missing and what experiences could help close the gap.

Stop Confusing Training With Readiness

Sending employees to leadership courses is easy to record. Building real readiness is harder. A succession plan should therefore focus less on how many courses someone has completed and more on what they have actually experienced.

Give potential successors opportunities to handle situations that resemble the complexity of the future role. They could lead a cross-functional project, manage a difficult customer issue, take responsibility for a business transformation workstream, oversee a temporary operational challenge or step into a manager's responsibilities during leave.

These experiences reveal things that classroom training often cannot.

How does the employee make decisions when information is incomplete? Can they influence people outside their own team? How do they respond when priorities conflict? Can they communicate difficult decisions to senior stakeholders? Can they redesign a process rather than simply follow an existing one?

These are the experiences that create evidence of readiness.

Development should also include coaching, reflection and feedback. After a stretch assignment, the employee should understand what went well, where they struggled and what they need to work on next.

Don't Let Critical Knowledge Walk Out the Door

Some organisations discover how dependent they are on one employee only after that person resigns or retires. The individual may know why certain decisions are made, which customers require special attention, how a complex process actually works or which risks are not obvious from the official documentation.

That knowledge cannot always be replaced by a job description.

Knowledge continuity should therefore be built into succession planning. Organisations can use job shadowing, documented decision principles, process guides, communities of practice, mentoring and deputy arrangements to distribute critical knowledge before a transition happens.

The objective is not to make the current role-holder less important. It is to make the organisation less dependent on one person's private knowledge.

A Practical Example: Building a Succession Pool

Consider a healthcare services provider with an operations manager responsible for workforce coordination, service quality and regulatory readiness across multiple sites.

The organisation expects the incumbent may retire within three years. However, there is no single employee who is currently ready to take over the role.

Instead of selecting one successor too early, the organisation creates a readiness pool of four employees from operations, quality, customer service and workforce planning.

Each person receives a different development opportunity.

One leads a site improvement project. Another manages a service disruption. A third presents workforce and resource scenarios to senior leaders. The fourth acts in the operations manager's role during a period of leave.

Their performance is then assessed against the capabilities the future role will require, including data interpretation, stakeholder judgement, operational decision-making and the ability to redesign workflows.

At the same time, the current operations manager documents important decision principles and coaches the pool collectively. This helps transfer knowledge that might otherwise remain with one individual.

After two review cycles, the organisation has one person who is approaching ready-now status and two others who represent credible longer-term options. The fourth employee, meanwhile, is redirected towards a specialist career path that better matches their strengths.

This is an important part of good succession planning: not everyone in the pool needs to become the successor.

Measure Succession Health, Not Just Succession Activity

A succession plan can look impressive on paper while providing very little protection to the business. Having 30 names in a talent database does not necessarily mean the organisation has 30 people who are ready to step into critical roles.

HR should therefore measure succession health using indicators that reflect actual readiness.

Useful measures can include the percentage of critical roles with credible ready-now and ready-later coverage, the diversity of talent pools, progress through development assignments, retention of pivotal talent and time-to-readiness.

Organisations should also look at where the risks are concentrated.

Stress-Test the Plan Before You Need It

A strong succession plan should also be tested against different scenarios.

What happens if the business accelerates its use of AI? What if the company expands into another market? What if several experienced employees leave within the same year? What if a critical role changes significantly because of automation or a new business model?

Scenario planning can expose weaknesses that are not obvious during a normal annual review.

It may reveal that an organisation has enough successors for today's structure but not enough people with the capabilities required for tomorrow's strategy.

External hiring still has an important role. There will always be situations where bringing in external expertise is the right decision, particularly when a capability does not exist internally or needs to be introduced quickly.

But external recruitment should not become a substitute for developing internal capability and managing knowledge concentration.

Succession Planning Is About Building Options

Effective succession planning is not about predicting who will become the next leader. It is about building enough capable people, shared knowledge and real-world experience so the organisation has options when roles change or someone leaves unexpectedly. That means identifying critical roles, preparing talent pools and developing people through experiences—not just training courses.

The real test is simple: if a critical role suddenly becomes vacant, do you have people who are genuinely ready to step in? When the answer is yes, succession planning becomes more than an annual HR exercise. It becomes a practical way to strengthen business resilience.

Building a Stronger Talent Pipeline With Cadence

As an HR consulting partner, Cadence helps organisations strengthen their people strategies around business-critical capabilities, workforce planning and talent development. Succession planning is not just about identifying high-potential employees; it is about understanding which capabilities the business will need, where the current gaps are and how to build readiness over time.

From succession planning and talent management to performance and workforce capability, Cadence works with organisations to create practical HR strategies that connect people development with business needs. The goal is to help organisations build a stronger pipeline of talent while reducing dependency on individual employees and preparing for the changes ahead.