Nike invented a job for Kevin Carroll called The Katalyst (the “K” is for Kevin) to serve as an agent for creative change and to add value to the overall mission of the Nike brand. Kevin has travelled the world to promote play as a means of maximizing human potential and creating social change. Nike invented a job for Kevin Carroll called The Katalyst (the “K” is for Kevin) to serve as an agent for creative change and to add value to the overall mission of the Nike brand. Kevin has travelled the world to promote play as a means of maximizing human potential and creating social change. This might seem a tad idealistic until you see his resume. He speaks 5 languages including Croatian, Czech, Serbian and German. He went from being a high school athletic trainer, to a college athletic trainer, to the athletic trainer for the Philadelphia 76ers in just 5 years. His words have appeared on over 17 million Starbucks coffee cups. He has addressed the United Nations on the importance of play in developing countries. He is the author of 3 highly successful books published by ESPN Books, Disney Press and McGraw Hill–most notably the Rules of the Red Rubber Ball.