When David Rosenstein ’20 was a Maryland Smith undergraduate student, he became known for his boundless energy. One marketing professor even referred to him as a “Human Energizer Bunny.  The title has stuck, and his tempo hasn’t slowed. These days, he’s in New York, working for LinkedIn as a Business Leadership Program associate. It’s an entry-level rotational sales program that has him working in customer operations and support, with content creators, and with customers in sales. “You wear a lot of different hats,” he says.