The following comes from Joe Girardi in a foreword he wrote for "The Difference You Make" by Pat Williams:
Leadership is about influence. During my playing days, I wore number 25 on my jersey. When I took the job as manager of the New York Yankees, I wore number 27. Why? Influence. The Yankees had won twenty-six World Series titles, and I wanted to wear a visible reminder of our goal, a twenty-seventh championships.
Two years after I took the job, we reached that goal. So now of course, I wear number 28. It's about motivation. It's about focus. It's about keeping the vision always before our eyes as a team. And it's about influence.