Not long ago, in the course of studying new product development, we were witnesses to a breakdown in the creative collaboration process. A toy company needed a hit offering for the next holiday shopping season. Early on, a marketer we’ll call Kyle came to a meeting where one of the company’s most talented game developers was previewing a car-and-racetrack game concept. During the discussion, Kyle piped up with his advice: “It needs some kind of creature.” The developer paid little attention. If anything, he resented the feedback from someone who had no expertise in creative design.

A version of this article appeared in the October 2015 issue (pp.118–121) of Harvard Business Review.