What Is a Strategic Diagnosis? How to Write One

October 1, 2026

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What Is a Strategic Diagnosis? How to Write One

Thursday, 1 October 2026

Key takeaways

A strategic diagnosis is the analytical step that identifies the core challenge an organisation faces before any solution or strategy is proposed
Richard Rumelt identifies the diagnosis as the first element of the strategy kernel: diagnosis, guiding policy and coherent actions
A diagnosis that correctly identifies the obstacle is worth more than a hundred pages of strategy built on the wrong problem
In the Australian government, strategic diagnoses support business cases, reform agendas and policy proposals. A weak diagnosis produces a strategy that solves the wrong problem
Writing a credible strategic diagnosis requires analytical rigour, intellectual honesty and the willingness to name uncomfortable truths about what is not working

A strategic diagnosis is the structured identification of the core challenge or obstacle an organisation faces. It answers the question: what is actually going on here? Before options are evaluated, before solutions are proposed, before resources are allocated, the diagnosis establishes what the strategy must address. Richard Rumelt, professor emeritus at UCLA Anderson School of Management, positions the diagnosis as the first element of the strategy kernel: the three part structure (diagnosis, guiding policy, coherent actions) that separates genuine strategy from aspiration. A strategy without a diagnosis is a solution in search of a problem. It may be elegant, well funded and enthusiastically championed, but if it addresses the wrong challenge it will not produce the intended outcome.

Why does the diagnosis matter more than the solution?

Most strategic planning processes rush past the diagnosis. The pressure to produce recommendations, action plans and KPIs means that the analytical step where the problem is genuinely understood is compressed or skipped entirely. The Mooncamp summary of Rumelt’s framework describes the consequence: if you fail to identify and analyse the obstacles, you do not have a strategy. A procurement team that proposes a supplier consolidation strategy without diagnosing why the current supplier base is fragmented may reduce the number of suppliers without addressing the demand patterns that caused the fragmentation.

Across the three levels of government in Australia, this pattern is common. A department or local government authority identifies a capability gap and immediately proposes a training program. But the diagnosis might reveal that the gap is not caused by a lack of training. It might be caused by the classification structure that makes it impossible to recruit at market rates, or by a governance model that removes decision authority from the people with the expertise. The training program solves the wrong problem.

What does a good diagnosis look like?

A good diagnosis has four characteristics. It is specific: it names the challenge in concrete terms, not abstract language. “Our processing times have doubled because the eligibility criteria changed in July and the assessment system was not updated” is specific. “We face challenges in service delivery” is not. It is evidence based: it cites the data, the audit findings, the performance metrics or the stakeholder feedback that supports the assessment. It is honest: it names the uncomfortable truths that the organisation would prefer to avoid, including the internal factors that contributed to the problem. It is focused: it identifies the central challenge rather than listing every issue the organisation faces.

The Perdoo analysis of Rumelt’s framework notes that the diagnosis simplifies the situation by identifying the critical aspects of the challenge. It is not an exhaustive catalogue of everything that is wrong. It is the professional judgement of what matters most.

How do you write a strategic diagnosis?

Writing a diagnosis involves five steps. First, gather evidence: performance data, audit findings, stakeholder feedback, benchmarking data, financial analysis. Second, identify the patterns: what do the multiple sources of evidence point to? What themes recur? Third, distinguish symptoms from causes: declining customer satisfaction is a symptom. The question is what is causing it. Fourth, name the core challenge: in one or two sentences, state what the organisation must overcome. Fifth, test the diagnosis: present it to informed stakeholders and ask whether it rings true. A diagnosis that surprises no one who works in the area is probably accurate. One that everyone rejects may be wrong, or may be naming a truth the organisation is not ready to hear.

The IoL EDGE analysis of strategic thinking reinforces that strategic thinking, including the diagnostic skill, is the most important capability for senior leadership success. Writing a diagnosis is how that capability is exercised in practice.

What are the common mistakes?

The first mistake is diagnosing the problem as a lack of the proposed solution. “The problem is that we do not have a new IT system” is not a diagnosis. It is a solution stated as a problem. The diagnosis should describe the operational or strategic challenge; the IT system is one possible response. The second is making the diagnosis too broad. “The organisation faces a rapidly changing environment” applies to every organisation and provides no guidance on what to do. The third is avoiding the internal factors. External challenges are easier to name because they do not implicate anyone in the room. A diagnosis that attributes the problem entirely to external factors without examining the organisation’s own contribution is incomplete. The Staffing Advisors strategic thinking guide describes strategic influence as doing the analytical work before the moment of decision, which is precisely what a diagnosis demands.

How can professionals build strategic diagnostic capability?

AcademyGlobal (AG), the Chartered Institute of Procurement & Supply (CIPS) Centre of Excellence for Australia, New Zealand and Southeast Asia, delivers programs that develop the analytical and strategic capability that diagnostic work requires. AG’s Strategic Thinking program builds the skills to analyse complex situations, identify leverage points and construct plans that address the right problem. For professionals in leadership roles where diagnostic capability determines the quality of every strategic decision, AG’s Leadership & Management Skills programs develop the broader leadership disciplines that strategic diagnosis depends on.

A well written diagnosis is the hardest and most valuable part of any strategy. It is the foundation that determines whether everything built on top of it will stand.

Frequently asked questions

What is a strategic diagnosis?
The analytical step that identifies the core challenge an organisation faces before any solution is proposed. It is the first element of Rumelt’s strategy kernel: diagnosis, guiding policy, coherent actions.
Why is the diagnosis more important than the solution?
A solution to the wrong problem wastes resources. The diagnosis ensures that the strategy addresses the actual obstacle. Most strategic failures can be traced back to a weak or absent diagnosis.
What makes a good diagnosis?
Four characteristics: it is specific (names the challenge concretely), evidence based (cites data), honest (includes internal factors) and focused (identifies the central challenge rather than listing every issue).
How long should a strategic diagnosis be?
One to two paragraphs for the core statement. The supporting evidence may run longer, but the diagnosis itself should be concise enough that every stakeholder can repeat it from memory.
Where can I develop strategic thinking capability?
AcademyGlobal’s Strategic Thinking program builds the diagnostic and analytical skills that support effective strategy development.

References

Change Management Critical Thinking Governance Leadership Public Sector Strategy