When Do You Need a Change Manager Rather Than a BAU Rollout?
Not every change needs a full-time change manager. A small update to a familiar process may be handled well by the operational team that owns it. At the other end of the scale, asking busy managers to lead a disruptive transformation “through BAU” can leave the people side of delivery without enough time, expertise or authority.
The useful question is not whether change management is necessary. Every rollout that asks people to work differently needs some form of change management. The decision is how much dedicated support is proportionate, who will own it and what evidence supports that choice.
Separate the role from the discipline
A project can apply change-management thinking without employing someone with the job title “Change Manager”. Sponsors, operational managers, subject experts and the project manager can share defined parts of the work.
That can work when the change is contained and those people have capacity and relevant skills. It becomes risky when nobody is accountable for bringing the work together.
Start by naming the change-management outcomes the initiative needs: clear sponsorship, understood impacts, credible communications, manager preparation, training, feedback, resistance management and adoption measures. Then decide who will produce and coordinate them.
BAU-led does not mean unplanned
A BAU-led rollout is appropriate only when the operational owner can describe how the change will be introduced, supported and measured alongside normal work. “The managers will handle it” is not yet a plan.
Identify the named owner, the people who will contribute, the time they require and the decisions they are authorised to make. Add the work to the delivery plan. If it depends on team meetings, coaching, job aids or local testing, schedule those activities and agree what will be deprioritised if capacity is tight.
BAU leadership can be a strength. Operational managers understand the work, language, customers and informal relationships. The weakness appears when familiarity with the operation is treated as a substitute for structured preparation.
Look first at the degree of behavioural change
Technical size and people impact are not the same. A complicated system update may make little difference to daily behaviour, while a seemingly simple policy change may alter judgement, authority, measures and established working relationships.
Ask what people will need to stop, start or do differently. Will roles or reporting lines change? Will professional discretion narrow? Will managers need to challenge established habits? Will teams believe the change threatens status, security or competence?
The more the initiative depends on people changing behaviour rather than simply receiving information, the stronger the case for skilled change-management support.
Assess reach, diversity and consequences
A change affecting one experienced team in a single location is different from one crossing functions, suppliers, regions or professional groups. Greater reach creates more audiences, local impacts and competing interpretations.
Consider the consequence of weak adoption as well. If inconsistency could affect safety, regulation, vulnerable customers, data protection, service continuity or a major benefit in the business case, relying on spare BAU capacity may be a poor risk decision even when the number of people affected is modest.
Prosci’s approach to people risk considers both the characteristics of the change and the attributes of the organisation receiving it. That is a useful reminder that the same rollout can require different support in two organisations.
Check capacity, capability and authority
Three tests make the resourcing decision clearer.
Capacity asks whether BAU roles have protected time to understand impacts, prepare managers, coordinate communications, support learning and monitor adoption. Capability asks whether the people assigned know how to assess readiness, diagnose barriers and design proportionate interventions. Authority asks whether they can secure sponsor action, influence the plan and escalate people risks.
A gap in one area does not automatically require a full-time change manager. It does require a response. You might bring in a practitioner for an initial assessment, coach an internal lead, assign part-time specialist support or create a small change team for the highest-risk stage.
Choose between three practical models
For a low-impact, familiar change, BAU can lead with a named operational owner and a short adoption plan. The project should still confirm responsibilities, impacts, communications, support and measures.
For a moderate change, a hybrid model may be better. A change practitioner can assess people risk, design the approach and equip managers, while operational leaders deliver local activity. This provides expertise without separating the change from the people who will own it.
For a high-risk or behaviourally complex transformation, appoint a dedicated change manager with sufficient access to the sponsor and project team. They should integrate their work with project delivery rather than operate as a parallel communications service.
The correct model may change by stage. Part-time support during discovery could become dedicated capacity before a pilot or enterprise rollout.
Put the decision into PRINCE2 governance
In a PRINCE2 project, the resourcing choice should connect to the business case, plans, risks, roles and stage decisions. If benefits depend on adoption, the business case should recognise the work required to achieve it rather than funding only the technical product.
Define who is accountable for the people side and include change-management products and activities in the project plan. Record assumptions about BAU capacity and capability. Put material adoption risks in the risk register with owners and responses.
At each stage boundary, review whether the chosen model remains adequate. If impact has widened, resistance is emerging or managers cannot release people for preparation, the project board should decide whether to add support, change the plan or accept the risk. Manage by exception works only when tolerances and escalation triggers include people and operational impact.
Use a short decision test
Before agreeing the approach, ask:
- How much behaviour, identity, authority or routine will change?
- How many different groups are affected, and how varied are their impacts?
- What happens if adoption is slow or inconsistent?
- How ready and trusted are sponsors and people managers?
- Does BAU have protected capacity, change capability and authority?
- Who will integrate the people work with the project plan and decisions?
If the answers show limited impact, supportive conditions and credible ownership, a BAU-led rollout may be entirely proportionate. If they show high behavioural change, serious consequences, weak readiness or no real capacity, dedicated expertise is easier to justify.
The final choice should be recorded, reviewed and allowed to change as evidence emerges. That is not unnecessary bureaucracy. It is responsible project and change governance.
If you are deciding how to resource the people side of a project, I would be happy to help assess the change, define a proportionate model and connect it with PRINCE2 governance and operational delivery.
About Mark M Barton
I am a Change Management, Change/Internal Communications, and Project Delivery and Operations professional with over 25 years' experience helping organisations deliver complex projects, improve operations and navigate organisational change.
Certified in both Prosci Change Management and PRINCE2, I work across change management, project delivery, operational improvement, internal communications and transformation initiatives, helping organisations achieve successful outcomes through both structured delivery and effective people engagement.
If I can help you, your team, or your organisation do reach out.
