Change Management: A Strategic Guide to Managing Organisational Change

Change Management is the discipline through which an organisation prepares, guides and consolidates a transformation, so that new strategies, structures, processes or tools are genuinely adopted by its people.

The central point is this: designing a change does not mean having achieved it. A new organisational structure can define different roles, responsibilities and decision-making boundaries, but those changes create value only when they become understandable and workable in day-to-day work. Change Management governs precisely this passage from decision to adoption.

The roots of the discipline are generally traced back to Kurt Lewin’s studies on changing individual and group behaviour. Over time, the field has broadened to encompass digital transformations, reorganisations, M&A, leadership changes, new operating systems and cultural transformations.

When Change Management is needed

Change Management becomes necessary when a decision significantly alters the way people work.

It may be the introduction of a new ERP, a merger between two companies, a change in governance, a new commercial strategy or a different allocation of responsibilities. In all these cases the problem is not only defining the new model, but guiding the transition from previous behaviour to the behaviour now required.

A corporate reorganisation makes this relationship particularly evident. Redesigning functions and reporting lines means changing who decides, who is accountable for results, who must be consulted and which relationships become priorities. The new organisational chart may be correct on paper and still fail to work if the organisation keeps its previous habits, procedures and decision-making practices.

This is why Change Management should begin while the change is being designed, not after it has been announced.

The main Change Management models

No single model works for every transformation. The best-known frameworks view change from different perspectives and can be used in a complementary way.

Lewin’s model

The model associated with Kurt Lewin is summarised in three stages: unfreeze, change and refreeze.

Unfreeze challenges the existing equilibrium and creates the conditions for change. The change phase introduces new behaviours, structures or practices. Refreeze consolidates the new arrangement so that it is not abandoned as soon as attention on the project fades.

The simplicity of the model keeps it useful as a conceptual framework, even though contemporary organisations rarely reach a truly stable state. Its value lies above all in reminding us that introducing something new without changing the conditions that sustained the previous behaviour often produces only temporary change.

Kotter’s 8 steps

John Kotter built a framework that puts leadership and organisational mobilisation at its centre. The model starts by creating a sense of urgency, builds a guiding coalition and a strategic vision, engages people, removes obstacles and aims to consolidate results progressively.

Kotter himself later evolved the originally linear model towards a more dynamic approach, suited to contexts in which several transformations are under way at the same time.

The ADKAR model

ADKAR, developed by Prosci, looks at change at the individual level through five elements: Awareness, Desire, Knowledge, Ability and Reinforcement.

A person must understand why the change is necessary, choose to support it, know what to do, be genuinely able to act in the new way and, finally, consolidate the behaviour.

The advantage of ADKAR is that it shows where adoption stalls. A person may know a new process perfectly and still lack the ability to apply it; or they may have the skills and tools but not understand why the change is necessary.

Why change stalls

For years, change management was accompanied by the mantra that 70% of transformations fail. Today it is more useful to treat that figure as a historical warning, not as a law.

McKinsey observes that organisations able to manage complex transformations well can reverse those odds and achieve far higher success rates. The point, then, is not to establish a universal failure rate, but to understand which conditions make adoption more difficult.

The first is weak sponsorship. Prosci continues to identify active, visible sponsors as one of the main factors associated with success. Announcing a transformation and then delegating it entirely to the operational team signals that the change is not truly a priority.

The second is ambiguity. People need to understand what changes in their own work, which behaviours are expected and what stays the same. Generic messages such as “we need to become more agile” produce little action unless they are translated into observable decisions, processes and responsibilities.

The third is overload. In 2025 McKinsey found that the frequency of change initiatives has risen sharply compared with the past. Gartner also draws attention to change fatigue: when large and small transformations pile up without clear priorities, people’s capacity to absorb them diminishes.

From design to adoption

An effective Change Management process can be organised into four steps.

Diagnosis. Before intervening, you need to understand which people, processes and behaviours will be affected. The question is not only “what are we changing?”, but “who will have to work differently for this change to create value?”.

Design. The new structure must be translated into concrete consequences: new roles, new decisions, tools, skills, metrics and responsibilities. In this phase, sponsors, managers and the most affected groups must be identified.

Adoption. Communication, training and support must accompany the actual use of the new model. Communication explains direction and rationale; training builds capability; managers and sponsors address resistance and operational problems.

Consolidation. Change becomes stable when it is built into ordinary processes: objectives, meetings, appraisal systems, responsibilities, tools and decision-making criteria. Without this step, people tend to revert to previous ways of working as soon as the pressure of the project eases.

The role of leadership and managers

Change Management does not belong to a single function.

Leadership must define the direction, priorities and reasons for change. Sponsors must make it visible through consistent decisions and behaviours. Managers, in turn, translate the transformation into people’s day-to-day work.

This is where many initiatives lose momentum. A new strategy can be clear to the board and remain ambiguous for those who must turn it into operational activity.

Prosci draws a distinction between sponsorship and people management: the former legitimise and support the change at organisational level; the latter communicate, listen, manage resistance and guide people through adoption. The Change Manager coordinates precisely this system.

Communication and participation

Communication is essential, but it is not the same as Change Management.

An internal campaign can explain the new arrangement well without changing any behaviour. People must be able to connect the message to its concrete consequences for their own work.

The most effective communications progressively answer four questions: why are we changing? What changes for the organisation? What changes for me? What do I need to do now?

Participation matters too. Involving those who know the processes makes it possible to spot problems that a purely top-down project might miss, and it raises the quality of the solutions. Participation, however, does not mean that every decision must be shared: it means clearly distinguishing what has already been decided from what people can still contribute to.

How to measure Change Management

Success is not measured by the number of communications sent or courses completed.

Prosci identifies three dimensions that are particularly useful for observing adoption: speed of adoption, meaning how quickly people start working in the new way; ultimate utilization, how many of the people involved actually adopt the change; proficiency, how well they are able to operate within the new system.

These indicators must then be linked to the business outcome that prompted the transformation. If a new CRM is introduced, the goal is not simply to have active users, but to improve the quality and availability of commercial data. If the organisational structure changes, the outcome may be shorter decision times, less overlap or greater accountability.

Change Management works when the measure of adoption and the measure of results remain connected.

Change Management in 2026

In 2026 the main challenge is no longer managing a single major change, but building organisations able to absorb many changes without losing coherence.

Artificial intelligence makes this problem even more evident. Introducing AI tools is not the same as adopting them: new workflows, skills, control criteria and responsibilities are required. Prosci draws precisely this distinction between simple usage and proficiency, that is, the ability to turn adoption into results.

At the same time, AI can support change management by analysing feedback, identifying recurring questions, organising knowledge bases and flagging areas where adoption is slowing. It nonetheless remains a tool: sponsorship, clarity of responsibilities and quality of management still depend on people.

From change decided to change achieved

Change Management serves to bridge the gap between a transformation that has been formally approved and one that has actually been adopted.

Strategy, organisation charts, processes and platforms can be designed with precision. Value emerges only when people understand the new system, have the capabilities to use it and change their behaviour in a sufficiently stable way.

This is why change management should be designed alongside the transformation, not added at the end as a communication plan.

Change has succeeded when it stops being perceived as a project and simply becomes the way the organisation works.