Organisational structures: Appropriateness of organisational structures

The idea

Organisational structure is the way a business arranges roles, authority and communication. Its appropriateness depends on matching structure to size, strategy and workforce. A small start-up may use a flat structure with few layers, so decisions are quick and staff are flexible. As a business grows, a tall hierarchy with clear chains of command can improve control, but adds cost and slows communication. Assess appropriateness by weighing speed of decision making, cost, clarity of roles, flexibility and employee motivation against the business's objectives.

For example: A rapidly changing tech firm might benefit from a flat structure to maintain agility, whereas a large bank may require a tall structure for strict control.

What earns the marks

• Defines organisational structure as the arrangement of roles, authority, responsibility and communication channels within a business.
• Explains that appropriateness means judging how well a structure fits factors such as business size, growth stage, strategy and workforce skills.
• Contrasts a flat structure, with few management layers and wider spans of control, against a tall hierarchy, with many layers and narrower spans of control.
• Evaluates trade-offs: tall structures can improve control but raise labour costs and slow communication; flat structures can speed decisions but may overload managers.
• Applies the judgement to a specific business context, recommending a structure and justifying it against the business's objectives.

Common mistakes and how to put them right

• Describing a structure as simply good or bad, rather than explaining why it is appropriate for a particular business context.

  Put it right by linking each advantage or drawback to size, strategy or market conditions.

• Confusing span of control with chain of command.

  Put it right by defining span of control as the number of employees reporting to one manager and chain of command as the line of authority from senior to junior staff.

• Assuming every growing business should become a tall hierarchy.

  Put it right by evaluating alternatives such as delayering to preserve flexibility.

Exam tips

• Use the case study details, such as number of employees or management layers, to justify why one structure suits the business better than another.
• When asked to evaluate, state a clear recommendation and support it with at least two developed reasons and one counter-argument.
• Use precise terms such as hierarchy, span of control, chain of command, delegation and delayering to show accurate knowledge.