Internal vs external COO: how to decide which is right

Executive overview

Promoting the wrong person to COO — even a top performer — wastes their talent and damages the organisation. The decision between internal and external candidates should be driven by a scorecard, not loyalty or convenience.

Write the roles, responsibilities, and success metrics first. Then evaluate every candidate against that same standard.

The scorecard comes before the candidate — not the other way around.

What the COO role actually requires

• COO success is almost entirely about leading and managing people, not domain expertise
• Skills that matter: building consensus, managing conflict, growing teams, project and time management
• Unlike functional heads, a COO doesn't need to be the best in any one discipline

When to favour an internal candidate

• Deep industry or technical domain knowledge is genuinely required for the role
• Promotes someone already embedded in culture, relationships, and operations
• Avoids the political friction of hiring over existing team members
• Avoids the ramp-up cost of learning the industry, org, and people from scratch

When to favour an external candidate

• No internal candidate clears the scorecard threshold — don't promote to keep someone
• Fresh perspective is more valuable than institutional knowledge in that context
• Poaching from a competitor is sometimes the only way to get the required industry experience