As much as there was a mystery about how Rivers and Jackson would translate to the head coaching profession, there was never a doubt that either man was a leader. You knew that by how they conducted themselves on the court and by the roles they filled for their teams. There was one other playmaker, like Rivers and Jackson, who was given an NBA head coaching position 20 years ago with no previous coaching experience. He was a terrific leader as well, albeit on one of the great college basketball teams of all time. The last undefeated team. But Quinn Buckner was a flop with the Dallas Mavericks 20 years ago.