“I did it because we had to.” That is how current Amicus CEO John Crowley sums up his decision to leave his job and become the Co-founder, President and CEO of a biotech start-up that conducted research on a new experimental treatment for Pompe disease, which he credits as ultimately saving his children’s lives. Listen in as Crowley shares more about his incredible journey in rare disease pharmaceutical development, the four elements he sees as the necessities to being a successful entrepreneur and what he feels is really the greatest trait of a leader.