Definition
Succession planning is the process of identifying business-critical roles and preparing people or talent pools to fill them when the need arises.
This definition follows the CIPD's succession planning guidance, which places both leadership and other business-critical positions within the scope of succession planning.
Start with role risk
Succession planning starts with the role, not a list of favored employees.
A role deserves attention when a vacancy would materially interrupt decisions, revenue, customer delivery, regulatory responsibility, technical continuity, or institutional knowledge. Seniority is one signal, but not the only one. A specialist with scarce knowledge may present more continuity risk than a manager whose work can be covered by several peers.
Assess role risk through four questions:
- How serious would the business impact be if the role became vacant?
- How soon could the vacancy occur?
- How difficult would the role be to fill internally or externally?
- Which knowledge, relationships, permissions, or decisions depend on the current holder?
This keeps the plan tied to business continuity rather than status.
How succession planning works
Step — Decision · Record
- Identify critical roles — Which roles require planned continuity? · Role criticality and vacancy risk
- Define success requirements — What experience, capability, and judgment does the role require? · Role profile and target competencies
- Build the candidate pool — Who could become ready, and who may enter later? · Internal candidates, external options, talent pools
- Assess readiness — What evidence supports each candidate's current level? · Performance, potential, competency, experience, aspirations
- Plan development — What must happen before the person can perform the role? · Assignments, mentoring, learning, lateral moves, milestones
- Prepare transition — How will responsibility, knowledge, access, and relationships transfer? · Transition and handover plan
- Review — Have the role, risk, candidates, or time horizon changed? · Updated readiness and coverage decisions
Avoid naming only one successor. A single candidate may leave, decline the role, or no longer fit the future version of it. Pools create options and make development useful across several possible roles.
How to assess successor readiness
Readiness is specific to a role and a time horizon. "High potential" is too broad to answer whether someone could lead a function next month.
Use evidence from several sources:
- Results in current and earlier roles
- Demonstrated competencies at the level the future role requires
- Experience with comparable scope, complexity, and decisions
- Learning agility and performance in stretch assignments
- Motivation and career preference
- Development gaps and the realistic time needed to close them
The 9-box grid can support a talent discussion, but it should not decide succession on its own. Performance and potential labels do not capture role-specific readiness, interest, or the risk of relying on one manager's judgment.
How Spark.work supports succession evidence
Spark.work connects several records used in succession decisions. Position Management defines positions, levels, job families, career tracks, and role relationships. Career Paths maps progression and the competencies required at each stage. The Competency Library gives reviews, development, promotion, and succession a common capability language. The 9-Box Grid combines performance and potential evidence to support talent reviews, leadership pipelines, and succession planning. None of these records should replace a documented readiness discussion.
What Succession Planning Is Not
Often confused with — The difference
- Replacement planning — Replacement planning names emergency or near-term cover for a role. Succession planning also develops future readiness and talent pools over time.
- Career pathing — Career pathing shows possible progression for employees. Succession planning protects continuity in roles the organization considers business-critical.
- Performance review — A review assesses performance over a defined period. Succession planning uses performance as one input alongside potential, capability, experience, interest, and role-specific readiness.