Can I take an passive role in a business - I want to found a startup but don't want to do the interviewing. My passion is idea generation...Do I have to start a company myself or are there other alternatives to realizing these ideas.
As long as you're willing to give people cash, they'll implement your ideas for you.
Otherwise, you're probably just day dreaming. An idea is worth very little to people in comparison to hard work and know how, since those people have creative ideas of their own already.
Experience and expertise are in demand too; but if you're reluctant to "do the interviewing", then you're probably averse to getting to know consulting clients, which involves a great deal of interviewing.
Sorry to be critical. Realistically, I think you'd need to hire or invest in people if you want to passively watch someone else implement your ideas.