I think it depends on what you're trying to achieve. For example if you're trying to pull off the iPhone in one year with 5 guys, it makes sense to spend time finding the best guys.
You can also try to find 15-20 decent guys, but there are benefits to smaller teams — lower communication cost, a potential compounding effect when smart people work together, etc…
You can also try to find 15-20 decent guys, but there are benefits to smaller teams — lower communication cost, a potential compounding effect when smart people work together, etc…