" who got an MBA after starting as a PM at Microsoft, decided to go to business school when he noticed that well-designed products didn’t always become market winners. “I saw that good design isn’t enough,” Arjun noted. “There’s something else, and I wanted to learn what that something else is. In business school I realized you could ask business questions and answer them really easily, on the back of a napkin. "

― Gayle Laakmann McDowell , Cracking the PM Interview: How to Land a Product Manager Job in Technology