The two most important things about people on a revolutionary team are their ability and passion. Their educational level or work experience is meaningless--most of the engineers who did ground-breaking work of the Macintosh design didn't even graduate from college.
Great leaders are paradoxical. They catalyze, rather control, the work of their teams. They have an overarching vision for the team but are not autocratic in the realization of this vision. Their eyes are open to whatever results occur-not just planned goals, because serendipity is a great innovator.
Great teams are usually small-under fifty in total head count. (There are few examples of a team made up of hundreds of people who created anything revolutionary.) Big teams aren't conducive to revolutionary products because such products require a high degree of single-mindedness, unity, and unreasonable passion.