"Few professionals would argue with the need for a shared vision. It's pretty much accepted as good management practice nowadays - the way we try to get people more engaged. But I'd argue that shared visions are not all they're cracked up to be. If you think about it, the more diverse a team of people are, the less chance there is of arriving at a common vision. Diversity and a unified perspective are, to great extent, mutually exclusive. In anything but a small group, finding common purpose is nigh impossible unless you're going to select a team of me-too automatons."