The men and women who led these sixteen Tier One teams were not what I expected. Although their careers neatly bracketed their teams’ winning streaks, there was plenty of evidence to suggest that I’d really discovered something else—that the most dominant teams in history had succeeded without traditional leaders. Though I hadn’t found any evidence to refute “captain theory,” my research had raised sufficient doubts. Before I went any further, I decided to explore some alternative hypotheses.
