Organizational Design
Star Model vs. org chart: what each one actually explains
An org chart answers one question: who reports to whom. Jay Galbraith’s Star Model answers the question leaders actually lose sleep over — why capable people in a sensible structure still cannot get a decision made.
The org chart is a map of authority, not of work
Every organization has two structures. The one on the chart, and the one that decides what happens on Tuesday. The chart is accurate about titles and useless about flow. It cannot show you where a request waits four days for a signature, which two directors route around each other, or why the incentive plan quietly contradicts the strategy deck. Those forces are load-bearing, and none of them are drawn.
This is why reorganizations disappoint so reliably. Redrawing boxes changes the map. It rarely changes the architecture.
The five points, side by side
Galbraith’s model holds that design is five interdependent choices — strategy, structure, processes, rewards and people — and that performance comes from their alignment, not from any one of them. An org chart depicts one point and implies the rest.
Strategy
On the org chart: Invisible on an org chart.
In the Star Model: Names the choices the design is supposed to serve. If nobody can state the strategy in a sentence, every other point of the star is being optimized blind.
Structure
On the org chart: This is the only point an org chart draws — boxes, lines, spans of control.
In the Star Model: Treats structure as one variable among five, not the whole design. Reorganizing structure alone is why the same problems reappear two quarters later under new titles.
Processes
On the org chart: Invisible. The chart shows who reports to whom, never how a decision actually travels.
In the Star Model: Makes lateral flow explicit: how information moves across boxes, where approvals queue, who is consulted and who merely finds out.
Rewards
On the org chart: Invisible — and usually the real explanation.
In the Star Model: Exposes the gap between the behavior you ask for and the behavior you pay for. People follow the compensation plan, not the values slide.
People
On the org chart: Names occupants. Says nothing about capability, bench strength, or single points of failure.
In the Star Model: Asks whether the humans in the design have the skills and development the other four points assume they have.
Four symptoms, and what the star says about them
“We reorganized and nothing changed.”
You moved Structure while Processes and Rewards stayed exactly as they were. The star fell out of alignment the moment the new chart was published.
“Everyone agrees in the room and nothing ships.”
A Processes problem wearing a culture costume. Decision rights are undefined, so agreement is cheap and commitment is nobody's.
“Our values say collaboration; our people hoard.”
Rewards. Individual quotas and stack ranking will beat a values poster every time, and they will do it quietly.
“We lose our best people and can't say why.”
People and Rewards misaligned with Strategy. Exit interviews return symptoms; the star returns the cause.
How to run the diagnostic this week
- 1Take one decision that recently went badly. Not a category — one decision, with a date.
- 2Trace it across all five points. Who owned it, what process carried it, what the outcome paid, whether the strategy made the answer obvious.
- 3Find the misalignment. There is almost always exactly one point pulling against the other four.
- 4Change that point — and check the four it touches before you announce anything.
Structure is the loudest point and the one leaders reach for first. It is seldom the one that is broken.