Simón Cohen, founder of Henco Logistics, transformed a small Mexican logistics company into a major player within the industry. Cohen credits the firm’s focus on employee happiness as the key ingredient to its success — an approach he developed following a personal crisis. Cohen and Harvard Business School professor Francesca Gino, author of the case about Henco, discuss whether or not that approach can endure through Henco’s rapid growth, leadership transition, and changing employee expectations.