Why Succession Planning Fails
21st July 2026 | Mark Smith
Most organisations recognise the importance of succession planning. It helps them prepare for changes in leadership and other business-critical roles, reduce dependency on particular individuals and develop the people and skills they are likely to need in future.
Considerable time is therefore invested in talent reviews, succession charts and annual planning discussions.
Yet a succession plan can look reassuring without providing much real assurance. Critical roles may have names beside them, but that does not show whether those people are genuinely ready, where succession coverage is weak or whether the plan still reflects the organisation’s current needs.
The difficulty is rarely a lack of commitment. As organisations grow and change, structures shift, priorities evolve, different parts of the business assess talent differently and information quickly becomes outdated.
Without a practical way to manage that complexity, succession planning can become a static record of possible replacements rather than an ongoing process for understanding risk, building talent pipelines and preparing people for future opportunities.
Succession planning becomes replacement planning
Succession planning often begins with a straightforward question: who could step into a role if it became vacant?
That is useful, but a name beside a role does not necessarily mean the organisation has strong succession coverage.
The same individual may appear as a possible successor for several positions, leaving multiple plans dependent on one person. That may be entirely reasonable, but it creates a clear risk when the organisation has few credible alternatives.
Not every role needs a single named successor. For some positions, a broader talent pool may be a more realistic way of preparing several people for a range of future opportunities.
What matters is understanding the available options, where dependencies exist and where action is needed before a vacancy or organisational change forces an immediate decision.
Readiness is not always clear
Readiness is not a general quality that someone either has or does not have. It relates to a particular role or type of opportunity.
Someone may be ready for one position but need significant development before taking on another. Strong performance in a current role does not automatically mean an individual is ready for something larger, more complex or substantially different.
Labels such as “ready now” or “ready in one to three years” are only meaningful when leaders can see what the individual may be ready for, what evidence supports the judgement, what development is still needed and whether the timescale remains realistic.
The opportunity must also fit the individual’s aspirations. They may not want the proposed role, may be unwilling to relocate or may not wish to move within the expected timeframe.
Readiness judgements become more dependable when the evidence and reasoning behind them are visible and can be challenged through calibration.
Plans are not kept current or acted on
Succession planning is often carried out through annual or periodic review exercises. These give leaders an opportunity to compare talent and consider future needs, but the plan may then remain unchanged until the next formal cycle.
During that time, people develop, leave or change their career plans. Roles evolve, structures shift and priorities change. A proposed successor who appeared ready six months ago may no longer be available, while another employee may have gained experience that changes their position.
Identifying a possible successor should begin a development process, not complete the succession task. Where someone is not yet ready, the organisation needs to understand what experience or support would help them progress.
Yet these needs are often discussed without becoming clear actions. When the plan is revisited, the individual may still be in the same readiness category, with little evidence of progress.
Important changes and development actions need to remain visible, allowing decisions and progress to be revisited as circumstances change.
Succession risk is not visible enough
A succession plan should help leaders understand where the organisation is exposed, including critical roles with no credible successors, pipelines that depend on too few people and individuals appearing against several roles.
The information needed to build that view is often held in different systems and spreadsheets, while important context remains with individual managers or HR teams. As a result, gaps may only become visible when disruption occurs.
Technology cannot replace leadership judgement, but it should make succession information easier to maintain and review. If the process is too rigid, activity can move back into spreadsheets and offline discussions, reducing visibility.
HR can coordinate the process and challenge the quality of decisions, but business leaders remain responsible for the risks and actions within their areas.
The consequences of poor visibility can include slower transitions, greater reliance on external recruitment, loss of critical knowledge and disruption when key people leave. Succession planning should therefore be treated as a business continuity and organisational risk issue, not simply an annual HR process.
What effective succession planning looks like
Strong succession planning gives an organisation a clear and up-to-date view of:
• which roles and capabilities are most critical
• where coverage is weak or depends on too few people
• whether there is sufficient depth in the talent pipeline
• who may be ready now or in future, and the evidence that supports it
• what development is needed and how succession risks change over time
It does not provide certainty about every future appointment. Organisational priorities change, individuals make their own career choices and external recruitment may still be required.
Its purpose is to help the organisation understand its options, identify where it is exposed and act before a gap becomes urgent.
Building real succession readiness
Succession planning is only as dependable as the decisions, development and follow-through behind it.
A plan with names against critical roles may look complete, but its real value lies in showing where the organisation is genuinely prepared and where action is still needed.