You would not ask a firefighter to perform open-heart surgery: Understanding 'collective intelligence'. The concept of 'collective intelligence' is simple -- it asserts that if a team performs well on one task, it will repeat that success on other projects, regardless of the scope or focus of the work. While it sounds good in theory, it doesn't work that way in reality, according to a researcher. Source 5a.
If you have a great team they can do some very interesting stuff using the collective intelligence theory but you would have to build the right team with each person bringing a different type of intelligence to the collective. From there they can over come serious obstacles and preform rather well. Granted they may not be able to build a super computer or surgery. But there should not be many tasks they can't figure out and get past it.