Kabir Sehgal, a corporate strategist, Grammy-winning producer, investment banker, bestselling author, and military reserve officer, talks about building and thriving in a portfolio career. He discusses the benefits of pursuing diverse interests, the tradeoffs and productivity discipline demanded by that career choice, and he offers tips for managing a schedule with multiple work activities. And he argues we should stop calling these second careers "side hustles." Sehgal is the author of the HBR article, “Why You Should Have (at Least) Two Careers.”