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Why Execution Gaps Widen During Periods of Rapid Growth

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The execution gap widens during rapid growth: what research on growth phases says about the point where informal execution breaks down.

The finding

Larry Greiner’s research on organisational growth, published in Harvard Business Review and republished as an HBR Classic with updated commentary in 1998, mapped a sequence of growth phases — creativity, direction, delegation, coordination, collaboration — each of which, in his analysis, tends to end in a specific and fairly predictable kind of crisis: of leadership, of autonomy, of control, or of red tape. Central to his argument was that these crises aren’t random misfortune. They’re the direct, structural consequence of practices that solved the previous phase’s problem becoming, by their continued use, the source of the next one.

Rapid growth compresses this cycle. An organisation growing quickly moves through the conditions that would trigger one of these crises considerably faster than an organisation growing steadily — which means the practices that worked at last quarter’s scale can become mismatched to this quarter’s reality before anyone has had the normal amount of time to notice the mismatch forming.

What it means in practice

Under steady, moderate growth, an execution gap opening between strategy and daily behaviour tends to accumulate slowly enough that some part of the organisation notices it before it becomes serious — a manager senses something’s off, a review surfaces a discrepancy, informal feedback catches the drift early. Rapid growth removes much of that slack. The same magnitude of drift that would have taken a year to accumulate under steady growth can accumulate in a fraction of that time, while the organisation’s capacity to notice and correct it hasn’t grown at anything like the same rate — noticing drift depends on relationships, context and institutional memory, none of which scale as quickly as headcount or revenue can.

This creates a specific timing problem worth naming: the people most likely to notice early drift are usually the ones with the longest tenure and the broadest context, and rapid growth is precisely the condition in which that group becomes a shrinking proportion of the organisation fastest, diluted by the pace of new hiring. The organisation’s noticing capacity isn’t just failing to keep pace with growth — it can be actively declining, in relative terms, at the exact moment it’s needed most.

This produces a specific asymmetry: the thing that’s growing fastest — the organisation’s size and complexity — is exactly the thing that most needs more coordination to manage well, while the thing needed to provide that coordination — shared context, working relationships, informal trust between functions — is the thing that grows slowest, because it depends on time and repeated interaction that rapid growth, by definition, doesn’t allow much of.

For how this pattern presents in other kinds of organisation, see other sectors.

Questions worth considering

  1. Has the organisation’s rate of growth outpaced the rate at which coordination mechanisms — formal or informal — have been rebuilt to match the new scale?
  2. Is there a part of the organisation currently relying on informal trust and shared context that predates the last significant wave of hiring or expansion, and might no longer reflect who’s actually involved?
  3. Given that execution gaps in rapid growth tend to be a byproduct of success rather than a sign of declining performance, would the organisation currently recognise the difference?

This perspective is part of Strategy Execution.

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Sources

Larry E. Greiner, “Evolution and Revolution as Organizations Grow,” Harvard Business Review, Vol. 50, No. 4 (July–August 1972), pp. 37–46; republished as an HBR Classic, Vol. 76, No. 3 (May–June 1998).

Donald Sull, Rebecca Homkes and Charles Sull, “Why Strategy Execution Unravels — and What to Do About It,” Harvard Business Review, Vol. 93, No. 3 (March 2015), pp. 57–66.

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Frequently Asked Questions

Because rapid growth compresses the time available to notice and correct drift. Research on organisational growth published in Harvard Business Review found that practices suited to one phase become mismatched at the next — and faster growth means that mismatch can develop before the organisation has had the usual amount of time to notice it forming.
Not necessarily. The gap can widen simply because the volume and complexity of what needs coordinating has grown faster than the organisation’s coordination capacity — a byproduct of successful growth rather than evidence of declining execution quality.
Research based on more than 250 companies found lateral coordination between functions was the central execution challenge even in stable conditions; rapid growth adds pressure by introducing new people, roles and reporting lines faster than the informal trust that supports coordination can be rebuilt.
The underlying dynamic — coordination capacity struggling to keep pace with rapid growth — appears to be a common feature of fast-growing organisations rather than something limited to specific sectors or circumstances.
Because financial and commercial metrics are what growth is driving, so revenue, customer numbers and headcount can keep climbing while execution quality, which is measured less directly and less often, deteriorates underneath. A leadership team can be right that the business is growing successfully and wrong that execution is keeping pace.
Noticing drift depends on relationships, context and institutional memory, none of which scale as quickly as headcount or revenue. The people best placed to spot early drift tend to be those with the longest tenure and broadest context, and rapid hiring dilutes that group fastest.
Greiner mapped growth phases, each of which tends to end in a fairly predictable crisis of leadership, autonomy, control or red tape. These are presented as structural consequences rather than random misfortune, because practices that solved one phase’s problem become, through continued use, the source of the next.
Sull, Homkes and Sull found across more than 250 companies that only 9% of managers could reliably rely on colleagues in other functions and units all of the time. Rapid growth is described as straining this kind of coordination fastest, because new hires, reporting lines and functions arrive faster than informal trust and shared context can be rebuilt.