Leaders are patiently impatient.
Patient in the area that they are persistent and committed to an outcome or goal. But are impatient in the area that they want the outcome and goal to be done as soon as possible.
Tom Peters & Nancy Austin: A Passion for Excellence: The Leadership Difference
Kevin & Jackie Freiberg: Boom!: 7 Choices for Blowing the Doors Off Business-As-Usual
John C. Maxwell: Leadership Gold: Lessons I've Learned from a Lifetime of Leading
John C. Maxwell: The 21 Irrefutable Laws of Leadership: Follow Them and People Will Follow You
John C. Maxwell: The 360 Degree Leader: Developing Your Influence from Anywhere in the Organization