I have had the privilege of being on 3 different teams that were great. This same question has come up each time. Opinion: One or two drivers, those who help push the group tp greatness without appearing pushy, very difficult. Open communication where everyone gets a turn to talk and systems to help that process along. One great team had a Remote Bulletin Board System yes, a BBS. It was called HARLIE and I still have a copy of it on diskettes floating around somewhere.