I was recently telling a colleague in Canada about a friend of mine I’ve worked with for some time who has a lot of leadership ability. This individual has a lot of influence, is engaging, has strong networks and is very competent. But something’s lacking. While relating to people well and even reading audiences intuitively as a speaker, this young leader is missing a key part of emotional intelligence. I finally think I’ve identified it: a dearth of curiosity. When I told my colleague about my friend, she challenged me: “Then how can this person be a leader?”

A dearth of curiosity is a career derailer. Curiosity is critical to leadership. It’scritical for lifelong learning. It’s critical for teamwork. And it’s critical for diversity.

On my flight to Toronto, I read an article by David Marcum and Stephen Smith, called “The Ultimate Team.” The authors point out that we all assume that good teams need diversity. However, diversity of viewpoints, age, ethnicity and experience doesn’t guarantee anything.

Diversity, without curiosity, isn’t worth much. Great teams know how to tap into the collective experience  and POV of everyone of them. But that “tapping” isn’t frequent enough on most teams to move them from “good enough,” to great.

One of the problems with a lack of curiosity is that it’s a form of arrogance. It signifies a person has concluded they know everything they need to know. They therefore hold back on colleagues and team members. They make judgments quickly, and are often unfortunately final in their decisions.

So if a dearth of curiosity is death to a leader and to a team member, is there no hope for my friend? There has to be a way to grow in curiosity. How do you increase your capacity for curiosity? Give me your best ideas. There are a lot of people who need your help.