A pipeline prepared against today's chart is preparing people for the organisation the company is leaving.
Why it matters when the plan changes
Pipelines are built from the current structure because that is what exists to build from. A strategy that changes what leadership roles contain invalidates the preparation without changing any name on the plan. The risk is invisible while the chart still looks the same and becomes acute at the moment a role has to be filled. Succession planning is meant to be an ongoing process of identifying and developing people for roles as they become vacant, but an ongoing process still needs the right target.
The tension is between depth and breadth. Preparing a small identified group is efficient and concentrates the exposure on a few people who may leave. Preparing broadly dilutes the attention that makes development work. Neither resolves without a view of which roles this plan actually depends on. Governance codes already treat composition, succession and evaluation as a standing responsibility, which assumes someone is asking what the future structure requires, not just who is next in line today.
In practice
A group maintains two named successors for every executive role. A new operating model merges two functions and creates a third that did not exist. The pipeline is current, thorough and aimed at a structure that is being dismantled, and the new role has nobody prepared for it at the moment it opens.
Evidence
Succession planning is an ongoing process of identifying and developing people who can move into leadership roles when they become vacant.
Succession planning, Wikipedia (2026)Governance codes treat composition, succession and evaluation as a standing board responsibility.
Financial Reporting Council, UK Corporate Governance Code (2024)
What it cannot tell you
Pipeline risk tells you which future roles lack a prepared candidate; it says nothing about whether the plan's forecast of those roles is correct. If the underlying strategy is wrong, the pipeline can be perfectly aligned to a structure that never arrives. It is also silent on whether a named candidate is genuinely ready, only that preparation is underway.
Questions
By listing the leadership roles the plan depends on over its horizon, including roles the plan will create, and asking for each whether a credible internal candidate is being prepared and by when. The UK Corporate Governance Code (2024) treats succession as a standing board responsibility, not a one-off list.
Because it is usually full against the current structure. Successors prepared for roles as they are today may be prepared for roles the plan is about to change, which means the preparation was real and aimed at the wrong target.
Key person risk is about losing someone now. Pipeline risk is about having nobody ready later. They respond to different moves: one to distributing work, the other to development against a future demand. An organisation can have plenty of one and none of the other.
As far as the plan commits the organisation, which is usually two to three years. Looking further produces preparation against a strategy that has not been decided; looking less far means the first vacancy in the plan arrives with no one ready.
The board for the most senior roles, and the leader who owns the consequence for the rest. Succession planning, Wikipedia (2026) describes it as an ongoing process of developing people for future vacancies, but ownership of which future roles matter cannot sit with the HR function alone.