Greiner's Growth Model

Theory & origin

Larry Greiner published Evolution and Revolution as Organizations Grow in Harvard Business Review in 1972, and revised it in 1998. His argument is that growth is not a smooth ramp but an alternation between long periods of evolution, where one management style works, and short periods of revolution, where that style breaks and must be replaced. Each phase is defined by what drives growth in it, and each ends in a specific, predictable crisis produced by the very thing that made the phase work. Phase one grows through creativity, founders doing everything informally, and ends in a crisis of leadership when informality can no longer coordinate the work. Phase two grows through direction, a professional manager imposing structure and standard process, and ends in a crisis of autonomy when capable people below chafe at central control. Phase three grows through delegation, decentralized units with their own authority, and ends in a crisis of control when the centre loses visibility and units drift. Phase four grows through coordination, formal planning systems, group functions, and shared services, and ends in a crisis of red tape when process outweighs judgment. Phase five grows through collaboration, matrix working and cross-functional teams built on social control rather than formal control, and ends in what Greiner first left open and later called a crisis of internal growth, resolved in his 1998 revision by a sixth phase of growth through alliances and partnerships outside the firm. Two honest cautions. The sequence is a pattern, not a law, and organizations skip phases, sit in one for decades, or run different phases in different divisions at once. And age and size are cruder drivers than Greiner implied, since industry growth rate matters enormously. What survives, and what makes it worth teaching, is the core mechanic: crises are normal and structural rather than evidence of bad management, and the fix is almost always to change the management model rather than to try harder within the old one.

Key components

The parts at a glance. Click any term for the full definition, a field example, and the common failure, in the model below.

How a consultant runs it

1. 01 Locate the phase before prescribing anything. Advice that fits a delegation-phase company will actively damage one still in its direction phase, and most bad org advice is phase-mismatched.
2. 02 Name the crisis as normal and structural. Leaders read a crisis of autonomy as a people problem or a bad hire, when it is the predictable cost of the centralization that previously worked.
3. 03 Change the model, do not try harder inside the old one. Every crisis is solved by adopting the next phase's management style, never by more discipline within the current one.
4. 04 Expect the next crisis while you solve this one. Delegation cures the autonomy crisis and buys you a control crisis, so plan the visibility mechanisms before the drift starts.
5. 05 Hold the sequence loosely. Companies skip phases, stall in one for years, and run different phases in different divisions at once, so use it as a lens rather than a timetable.

Worked example

Common pitfalls

1. 01 Trying harder inside the current management model when the phase itself has ended
2. 02 Reading a structural growth crisis as a people problem, a bad hire, or a founder failure
3. 03 Delegating authority without building matching visibility, then over-correcting when units drift
4. 04 Answering the red-tape crisis with more process, which is the disease presenting as the cure
5. 05 Treating the phases as a fixed timetable rather than a pattern companies skip and repeat

Sample deliverable

One real engagement, start to finish. Watch the numbers travel from raw input, onto the chart, into the finished artifact.