Most of us have some idea of our inner-core (i.e., character, self-concept, values, thinking patterns, emotional make-up, etc.) strengths and weaknesses, but we may not know much about how the inner-core strengths and weaknesses we possess translate into the “traits” that ultimately determine how you come across as a leader, which are the outer-core leadership behaviors we exhibit. Said another way: the strength, vibrancy and maturity of your inner-core determines the strength, vibrancy and effectiveness of your outer-core.

There’s no one “correct” leadership style, because every organization is different and needs to be led differently. But anyone who wants to excel as a leader needs to know where they are strong and weak both in the inner-core as well as the outer-core. Great leadership is less a function of what your predominant trait is and much more a function of the overall maturity of your traits, all of which combine to determine your leadership presence and effectiveness.

Leadership Assessment

Do you know your predominant leadership traits? Do you know your maturity level? The MLEI can help you determine answers to both of these questions.

That’s why I created the Mattone Leadership Enneagram Inventory (MLEI). This powerful assessment was first created by me back in 1997. I have spent years revising, validating, and testing the MLEI constructs both empirically as well experientially with executives I have coached all around the world. While there is no perfect assessment, I have found the MLEI to be an accurate measure of a leaders inner-core maturity as it isolates strengths and gifts that need to be leveraged as well as the weaknesses that need to be addressed. Problems with leadership almost always boil down to immaturity. But the great news is, immaturity can be addressed and overcome once you know where it resides and what it looks like.

Wheel of Intelligent Leadership


Based on my leadership enneagram, the nine-pointed diagram that dates back to ancient Babylon, the MLEI helps a person chart their own (or someone else’s) thinking patterns, emotional make-up and feelings, and provides an accurate picture of someone’s overall inner-core maturity. There are three basic leader trait combinations, each of which is further subdivided into three subtypes. We all operate in all three trait combinations and we all possess each one of the nine traits. The most important questions for a leader, however, are: (1) which trait is my most active or predominant trait? and (2) how mature are each of my nine traits and how mature am I overall?

Heart Leaders

People who predominantly lead from the heart tend to find that their emotions are their greatest strengths and their greatest weaknesses. Mature heart leaders, though, are admirable for having emotions and not leading in a robotic or unfeeling manner. The three subtypes of heart leaders are helpers, entertainers, and artists.

  • Leaders with a predominant Helper trait are empathetic, have close relationships, and handle conflict well if they’re mature enough, but if not, they can be manipulative and selfish.
  • Leaders with a predominant Entertainer trait place success at the center of their self-concept. They’re great when style beats substance, and can be charismatic. At the same time, they can be jealous and hostile to challengers.
  • Leaders with a predominant Artist trait are creative and innovative and have deep self-understanding. People appreciate that they are good at communicating feelings. But they risk becoming too self-involved and making unreasonable demands.

Head Leaders

People who have outstanding ability to think and get things done are predominant head leaders, and they can accomplish amazing things. With maturity, head leaders can lead to new levels of achievement, impressing followers and competitors alike. But insecurities can derail the maturity of head leaders, causing them to live too much in their heads or feel like they must constantly be engaged in activity. Subtypes are thinkers, disciples, and activists.

      • Leaders with a predominant Thinker trait are analytical and can turn complex thoughts into action. They’re great problem solvers, but they won’t act until certain, and that can let opportunities slip by.
      • Leaders with a predominant Disciple trait are loyal and dependable and get things done. However, they may become too dependent on authority and unable to act on their own.
      • Leaders with a predominant Activist trait are always working toward accomplishments and project a positive outlook. However, underneath they may have hidden pain that they use activity to distract themselves from.

Gut Leaders

Gut leaders are strongly engaged with their environment, but immaturity in a gut leader can cause frustration due to the fact that we live in an imperfect world. They may be disappointed in their own lack of standing, when people fail to live up to their expectations, and when people don’t strive for perfection. The gut leader subtypes are drivers, arbitrators, and perfectionists.

      • Leaders with a predominant Driver trait have confidence and inspire confidence. They’re take-charge and assertive (some would say aggressive), but can be overly focused on “making it” and may exploit others in the process.
      • Leaders with a predominant Arbitrator trait are terrific at identifying common ground and pulling people together. But sometimes people can’t live up to the arbitrator’s idealized image of them, leading to shattered illusions.
      • Leaders with a predominant Perfectionist trait can produce amazing results that others would have trouble finding fault with. However, they can be highly critical of themselves and others, immobilizing everyone out of fear of mistakes.

Recognizing Maturity Level Is Essential

Knowing which of your traits are more active than the others is important, but so is understanding the thoughts and behaviors that can derail you. The person who knows these things stays true to himself or herself, and can often get back on track when derailing attitudes or actions arise. If you want to take the MLEI on-line, there is a small charge to do so but simply email me for more information at Organizations that hire me for half- or full-day programs or my Intelligent Leadership Executive Retreats, we include the MLEI for all attendees and delegates.

Back to blog