I can imagine a Kirk-Spock sort of startup, where one person excels at making decisions and doing the legwork, and another at providing information and skills.
I suppose, in practice, few people can trust someone else to make all the decisions, especially if it's their future on the line. What's your experience been?
I should hope not. There has to be a unified vision of some sort. I'd like to point everyone in the direction of the Fred Brooks presentation from OOPSLA: http://www.oopsla.org/podcasts/Keynote_FrederickBrooks.mp3