Using the Enneagram to build self-awareness and lead better

Executive overview

Most leaders over-invest in technical skills while neglecting self-awareness — the trait research shows actually drives high performance. The Enneagram is a nine-type personality system that reveals not just who you are, but the unconscious motivation driving your habitual behaviour. A Cornell/GreenPeak study of 72 high-performing CEOs found self-awareness, not charisma or vision, explained their success.

Knowing your type — and your team's — cuts misunderstanding, reduces friction, and lets leaders tailor how they manage, communicate, and give feedback.

The biggest leadership mistake is assuming your way of seeing the world is the only normal one.

The nine Enneagram types

1. One — The Improver: Reliable, analytical, morally driven. Deep need to be good and avoid fault.
2. Two — The Helper: Warm, approval-seeking. Meets others' needs to feel liked and valued.
3. Three — The Achiever: Ambitious, goal-oriented, efficiency-focused. Driven to succeed and avoid failure.
4. Four — The Individualist: Creative, empathic, moody. Feels a missing piece others seem to have; seeks to be unique.
5. Five — The Investigator: Highly analytical and observant. Emotionally detached; accumulates knowledge to fend off feelings of inadequacy.
6. Six — The Loyalist: Security-seeking, worst-case-scenario thinkers. Pre-wired for risk detection; natural contingency planners.
7. Seven — The Enthusiast: Positive, possibility-focused, novelty-driven. Reframes negatives to avoid anxiety, grief, or boredom.
8. Eight — The Challenger: Assertive, blunt, hard-driving. Controls the environment to mask vulnerability.
9. Nine — The Mediator: Easygoing, conflict-averse consensus builders. Effective deal-makers; four recent US presidents were Nines.

Applying type knowledge in leadership

• Knowing a team member's type gives insight in minutes that might otherwise take years to develop.
• Adapt communication style by type: a Five needs calm, data-driven, low-pressure interactions; an Eight can handle directness.
• For last-minute meetings, brief a Five beforehand with the agenda and expectations — they feel seen rather than ambushed.
• Tailor performance reviews: dispassionate and data-driven for Fives; direct and energetic for Eights.
• Incentives differ by type — autonomy and privacy matter far more to a Five than open-plan perks.
• Fives in leadership roles tend to share information on a need-to-know basis; consciously counteract this to keep teams effective.

Enneagram as a team tool

• Assessments give teams a shared vocabulary immediately — useful for onboarding and reducing interpersonal friction.
• Ray Dalio uses personality assessments at Bridgewater not to slot people, but to give new hires something meaningful to discuss.
• One Manhattan company had staff post their Enneagram numbers on office doors so colleagues could calibrate before every interaction.
• People leave jobs when they feel unseen; knowing types helps leaders honour each person's contribution and working style.
• Benefits extend beyond work — parents, partners, and friends report the Enneagram shifts dynamics at home as much as at work.

Story transformation and personal growth

• People often believe they are stuck in an inescapable narrative shaped by their history.
• The facts of a history cannot change, but the interpretation of those facts can.
• All lasting transformation is story transformation — rewriting the false narrative, not just managing symptoms.
• Most self-narratives carry a negative tinge due to human negativity bias; changing the story changes behaviour.

Getting started

• Read The Road Back to You (Ian Morgan Cron) — an accessible primer designed to be readable, not academic.
• Take the IEQ-9 assessment at iancron.com.
• The Discovering You course (also at iancron.com) covers all nine types across nine hours — suited for individuals or teams.
• Once your type is known, use the language it provides to build a "working with me" manual for your team.