This is similar to the problem of hiring new employees. Personally, I've learned that it's more important to hire some and see how they work out, as you really

This is similar to the problem of hiring new employees. Personally, I've learned that it's more important to hire some and see how they work out, as you really can't predict actual job performance and fit from most interviews. Sure, you can weed out some of the bad apples, but there are people who are politically disastrous to add to a small organization that seem like great hires initially. I now think that getting someone into a position quickly that seems like they have potential is more important than finding the perfect candidate. People will always surprise you: sometimes for worse, but sometimes for the better.