Profile Media/Telecom Markets

Aryeh Bourkoff hates wasting time. Rather than checking his overcoat when he goes out to lunch during New York’s frigid winters, the investment banker sometimes asks his assistant to walk with him to the restaurant so she can take his coat with her back to the office. When it is time for him to leave, he summons her to bring it back, say people who know Bourkoff.

Eight years after he ...