Dean Smith is probably the greatest coach of all time. He was the head coach of the Tar Heels up to this year when Bill Guthridge took over. Dean Smith won more games than any other coach in college basketball history. Below is a link to a biography of him.
Dean Smith Bio
Bio of Former Coach Dean Smith:
Bill Guthridge Bio
Bio of Head Coach Bill Guthridge:
From the Past - Dean Smith To the Present - Bill Guthridge