The seven types of COO and how to choose the right one

Executive overview

Not every second-in-command needs the COO title — match the title to the actual work and pay level. Harvard identified seven distinct COO types, and each serves a different need. Hiring the wrong type, or giving the title too early, creates real problems.

The COO role is not a single role — it is seven different roles with one title.

The seven COO types

1. Executor — gets things done fast with more people; fills execution gaps the CEO can't close
2. Change agent — drives major pivots or internal change the CEO lacks skills or buy-in to lead
3. Mentor — grows people; critical when the company doubles and mid-senior managers can't scale with it
4. MVP — internal promotion to retain a key person; use sparingly, as it caps their career trajectory
5. Complement — takes everything the CEO dislikes or is weak at; the yin to the CEO's yang
6. Partner — similar to complement but more strategically aligned; shares decisions rather than absorbing them
7. Heir apparent — prepares to take over; used when the CEO plans to exit, sell, or step back

Title and timing

• Title should reflect the actual scope and pay level, not ambition
• Ladder: operations manager → director of operations → VP of operations → COO
• Giving the COO title too early removes future leverage and can strand the person with nowhere to grow
• Ask whether an executive assistant is the real gap before hiring a COO

Scorecard problem

• There is no universal COO scorecard — the role spec depends entirely on which type you need
• Define the type first; then build the hiring criteria around that specific function