Organizational Structures
5
Structures
Tested by name
2
Bosses
Matrix structure trap
1
Manager
Span of control varies
org chart 1 · the textbook tree
Functional
Everyone reports up through their function. HR people report to HR. Engineers report to Engineering. The shape is a clean tree.
best for
Stable environments, deep expertise per function
risk
Silos. Functions optimize themselves over the customer.
tells
"Reports up to the VP of [function]"
org chart 2 · multiple little kingdoms
Divisional
Each division is its own mini-company with its own functions. Organized by product, geography, or customer segment.
best for
Diversified products, geographies, or customers
risk
Duplication. Three HR teams, three finance teams, three of everything.
tells
"GM of the [region/product] division"
org chart 3 · two bosses, by design
Matrix
Every employee reports to TWO managers — usually a functional manager and a project or product manager. Built-in conflict, by design.
best for
Complex projects requiring multiple specialties
risk
Two-boss conflict. Priority disputes. The textbook risk.
tells
"Reports to the functional manager AND the project lead"
org chart 4
Flat
best for Small or startup orgs.
risk Span overload at scale.
org chart 5
Network
best for Asset-light businesses.
risk Loss of control.
Span of Control, Pictured
wide span · 10+
Routine, repeatable work. Retail, manufacturing.
narrow span · 3-5
Complex, judgment-heavy work. R&D, executive.
Exam Traps
Matrix is TWO bosses, not three
Functional manager plus project or product manager. The exam tests this number directly. Three is a misread.
Flat does not mean no managers
It means few management layers. Some flat orgs still have managers, just one or two layers deep.
Span of control is direct reports only
Indirect reports under those direct reports do not count. The exam tests the strict definition.
Functional structure ≠ functional area
In structure context, "functional" means organized by department. In HRCI exam context, "functional area" means an ECO domain. Different terms.
Matrix conflict is the textbook scenario
If two managers give conflicting priorities, the structure is matrix. That conflict is its built-in risk.
Span ≠ team size
Span of control is your direct reports. Total team including their reports is something else entirely.
Chefs in the kitchen, servers on the floor, managers up front. Everyone reports up their own function.
Each city has its own restaurant with its own chefs and servers. Reports up to a regional GM.
The head chef leads the special menu project across all restaurants. Line cooks report to her AND to their local GM. Two bosses.
Owner does the books and the dishes. Two cooks, three servers. No middle management.
Brand handles marketing. Every other function is contracted out. Asset-light by design.
Ready to test your PHR knowledge?
1,700+ practice questions written by certified professionals.
Start Practicing PHR