Effective Leaders

I am working on an article with today’s title. I want to distill the most important aspects of effective leadership into a few basic principles. I am looking for those things that are almost always a part of the lives of vibrant, growing, effective spiritual leaders. Today I share my “beginnings.”
What characteristics would you mention in describing the most effective leaders you have known or observed? What would you add to the list below?

Effective leaders are “on the move.” By this I mean that they are active, hard workers, disciplined, examples of commitment.
Effective leaders are creative. Here I think of words like visionary, strategic, flexible, innovative.
Effective leaders are concerned about people. This concerns makes effective leaders also effective followers, able to hear others, receptive, connected.
Effective leaders are effective communicators, with words but often without words.
Effective leaders are happy, fulfilled, and content.