Org design with Galbraith's Star Model: the 5 levers you actually have
Most reorgs only move the boxes (structure). Jay Galbraith's Star Model says you have 5 levers and must pull them together.
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- An organisation is 5 interlocking choices: Strategy, Structure, Processes, Rewards, People.
- Changing structure without changing rewards or processes is the single most common failed-reorg pattern.
- Start from strategy, not the org chart. The chart is an output, not an input.
- Use the Star as a diagnostic: which of the 5 points is misaligned with the others? That's where to intervene.
If you have ever lived through a reorg that 'didn't really change anything', you have lived through a Star Model failure. Jay Galbraith published this model in 1977 — almost half a century ago — and it remains the cleanest framework in organisation design. It says: an organisation is not its org chart. It is five interlocking choices, and if any one of them is out of sync with the others, the whole system underperforms quietly until someone declares 'a culture problem'.
What 'org design' actually means
'Org design' is one of those phrases that sounds bigger than it is. In practice it means deliberately deciding how the company will divide up the work, who decides what, how information flows, what behaviours get rewarded, and what kind of people you hire and grow. Every company does these things; only some do them deliberately. The ones that do it deliberately make better decisions, faster, with less drama.
If you have a background in software, think of an org as an architecture. The boxes on the chart are like classes. But classes don't run software — interfaces, message passing, state, and tests do. The org chart is similar. It's necessary, but it's only one of five things that have to fit.
The 5 points of the Star, explained
| Lever | The question it answers | Plain-English example |
|---|---|---|
| Strategy | What competitive advantage are we building, and what will we be world-class at? | 'We will win mid-market customers through fastest implementation in the industry.' |
| Structure | How is the work divided up, and who reports to whom? | BU-based vs functional, central vs federated, span of control. |
| Processes | How does information flow and how do decisions get made? | Planning rhythm, approval thresholds, escalation paths, data sharing. |
| Rewards | What behaviours do we pay for, promote for, and praise publicly? | Comp plans, leveling, recognition, what gets celebrated in all-hands. |
| People | Who do we hire, develop, and what skills are we building over time? | Hiring profile, leadership pipeline, learning investment, succession. |
Why alignment is the whole point
The Star Model's insight is not that these five things exist — anyone can list them. It is that they must align with each other and with the strategy. A growth strategy with a status-quo rewards system underperforms. A collaboration-heavy structure with individual-quota rewards underperforms. A premium-quality strategy with low-cost hiring underperforms. Each pair of points either reinforces or undermines.
Said differently: the company's actual operating behaviour is set by whichever of the 5 points is weakest at the moment. Strengthening the others without fixing the weakest does very little.
The classic boxes-only trap
An executive announces a reorg. The org chart changes. New leaders are named. Six months later, results are the same. Why? Because only Structure changed. Rewards still pay for the old behaviour. Processes still route information the old way. People still have the old skills. The new chart is overlaid on the old system — and the old system wins.
This is why reorgs feel exhausting and theatrical. The energy gets spent on names and reporting lines while the actual levers — what gets rewarded, how decisions get made — are untouched. Three months later, leaders quietly route around the new structure to get work done. A year later, someone says 'we need another reorg.'
Worked example: a strategy pivot
Imagine a company shifting from a product-led, self-serve growth motion to enterprise sales. The strategy point of the Star has moved. Let's walk through what each other point now has to change:
- Structure: you now need an enterprise AE team, sales engineering, deal desk, and probably a partnerships function. The flat product org no longer fits.
- Processes: pricing-approval flows, contract redlining, security questionnaires, and account-planning rhythms appear. These didn't exist before.
- Rewards: AEs need quotas, accelerators, and SPIFs (sales performance incentives). The flat 'everyone on the same bonus' system is now misaligned.
- People: you need senior enterprise sellers, solution engineers, and customer-success leaders comfortable with $500k+ deals. The hiring profile changes; the L&D agenda changes; managers need a new playbook.
If the company only changes structure and rewards but skips processes, deals will close — and then implode in implementation, because the back office can't support them. If it changes everything except people, the new processes won't be operated correctly. Strategy gets the headlines; the other four levers do the work.
Diagnose your org in 20 minutes
- Write your business strategy in one specific sentence. ('We will win X by being best at Y.') If you can't, stop here — strategy is the missing point.
- List the top 3 capabilities that strategy requires. ('Fastest implementation', 'Strongest analytics', 'Deepest channel partner network'.)
- Walk through each of the 5 Star points. For each capability, ask: does this point support it, ignore it, or actively undermine it?
- The first 'undermine' is your highest-leverage intervention — almost certainly more valuable than any other initiative on this quarter's plan.
- Bring the one-page output to your CEO. The Star diagnostic is one of the most senior conversations HR can credibly host.
What HR actually owns in a reorg
- Rewards: comp band updates, plan changes, recognition redesign.
- People: hiring profile, leveling rubric, leadership development, succession.
- Half of Processes: how decisions get made, who is in which meeting, what's the calibration rhythm.
- Co-ownership of Structure: span of control, layers, manager-to-IC ratios.
- Translator of Strategy: turning the CEO's words into 'what this means for our people'.
Most exec teams talk about reorgs in Structure-only terms. An HRBP who walks in with a 1-page Star analysis — five sticky notes, each with red/yellow/green — immediately elevates the conversation. The model is simple. The discipline of using it is rare.
FAQs
Frequently asked questions
Is the Star Model just consultant-speak?
No — it's the most academically grounded org-design framework, and it survives because every other model is a special case of it. Many consultants use proprietary versions that essentially relabel the same 5 points.
How is this different from McKinsey's 7-S?
7-S includes 'shared values' and 'style' (leadership) as separate elements. The Star folds those into Rewards + People. Both are valid; the Star is faster to use.
How often should we revisit the Star?
Whenever strategy changes meaningfully — typically annually. Sometimes more often in fast-moving companies. Less than once a year usually means strategy isn't really changing.
What if the CEO won't engage with this?
Start with the diagnostic on a single function (say, engineering or sales). Show the value on a contained scope first. Org design is earned, not granted.
- Mintzberg's 5 org configurations: which one are you, and which one should you be?
- Greiner's growth model — the 6 predictable crises every scaling company hits
- HR strategy on a page: the one document that aligns your people function to the business
- OB foundations: Schein on culture, Edmondson on safety, Hackman on teams
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