Idris Mootee writes at Blogging Innovation about the error of group-think. My favorite quote:
I see this all the time, one smart person can make a quick decision to solve a problem, two smart persons can frame an issue better and share perspectives and ten smart persons often have no idea of what problems they are trying to solve.
I have seen this all my work life: decision-making by committee produces the proverbial camel instead of a horse.
UPDATE: Fixed article link.