Aubrey Daniels, founder and Chairman of Aubrey Daniels International, is our new Cool Friend, and I think you'll appreciate his subject. He's the coauthor with James Daniels (any relation, I wonder?) of Measure of a Leader: An Actionable Formula for Legendary Leadership. His book and his consulting practice are based on measuring the effectiveness of a leader by examining the actions of his followers. I.e., he offers a practical approach to answering the question, "How effective is this leader, really?" You can read his Cool Friend interview here. Or visit his website here.