Every time the Duke University men's basketball team completes an offensive or defensive possession, coach Mike Krzyzewski yells "Next play" and urges them to concentrate on simply playing basketball. The point, says LinkedIn CEO Jeff Weiner, is that good bosses don't waste time celebrating victories or agonizing over defeats, but rather keep their teams focused on the task at hand. "You can take a moment to reflect on what just happened, and you probably should, but you shouldn't linger too long on it," Weiner explains.