By Kevin Yanik, Managing Editor What’s the one thing you must have to be a leader? Is it commitment, competency or compassion? How about confidence or courage? Those are all good traits of leaders, but one can’t be a leader without a follower. That was one of the messages Karl H. Watson Jr., former president of Cemex USA, delivered to those who attended the recent Young Leaders Conference of the National Stone, Sand & Gravel Association. Cemex is a...