You have a problem. You gather a group of smart, creative people and say, Let’s brainstorm. Together, you bounce around a bunch of ideas, whittling and honing them until you arrive at it: The Solution. Well, if that’s how you’re doing it, you have another problem: you’re brainstorming wrong. Using brainstorming to focus and refine ideas is convergent—using your collective creative power to zero in on the right answer.