“Unfreeze, change, refreeze.” It is quoted in almost every change management textbook as Kurt Lewin’s three-step model – yet Lewin never wrote it that way. Historians examining his original 1947 work have found no diagram, no three boxes, no neat sequence. The tidy version most consultants teach today is a later simplification of something far more dynamic.

What Lewin actually wrote

Lewin’s real contribution was field theory: the idea that behaviour in a group is held in place by a balance of opposing forces, some pushing for change and some resisting it. Change happens not by pushing harder, but by reducing the forces that hold the current state in place. “Unfreezing” and “refreezing” were loose metaphors inside a much richer discussion of group dynamics and social equilibria – not a project plan.

Why the three-step version endures

Later writers, keen to make Lewin’s ideas teachable, compressed the theory into three tidy stages. It stuck because it is easy to explain in a workshop. The cost is that it makes change sound linear and finite, with a stable end state to “refreeze” into – a promise that rarely matches how change actually unfolds in a modern organisation, where the ground keeps shifting.

The practical takeaway

The useful part of Lewin’s work was never the three steps – it was the force-field thinking underneath them. Before designing a change effort, map the real forces at play: what is actively resisting, what is enabling, and which of those forces you can realistically shift. That diagnosis is more useful than any diagram.

We use force-field style diagnosis with leadership teams before recommending a change approach. Talk to us if you want that done properly before you commit to a plan.

References

Lewin, K. (1947) ‘Frontiers in group dynamics: concept, method and reality in social science; social equilibria and social change’, Human Relations, 1(1), pp. 5–41.

Cummings, S., Bridgman, T. and Brown, K.G. (2016) ‘Unfreezing change as three steps: Rethinking Kurt Lewin’s legacy for change management’, Human Relations, 69(1), pp. 33–60.