I was with a startup and was the only technical member of the founding team. While the two other members personally bootstrapped the venture, I have to admit that outside of the funding, they were of very limited value during the first 6-9 months when development was the primary activity. In anything, they were a distraction because they constantly changed things, expanded scope, etc. Needless to say, it wasn't a successful venture, and from here on out, I plan to stick with only technical founders.