I just read Is Brainstorming a Waste of Time? on Lateral Action. Consider this quote:
I’ve heard similar complaints from quite a few creative directors and professional creatives – instead of seeing brainstorming as essential to the company’s creative process, they see it as a chore, something to get out of the way as quickly as possible so that they can get on with the real business of creativity. Particularly in companies where everyone is expected to contribute to the brainstorm – not just the 'creative team' – some creative directors have said they see it as a matter of political expediency rather than a source of inspiration: by involving other departments, everyone gets to 'have their say', but the really valuable ideas don’t emerge until afterwards, when the creatives start work in earnest.
I don't know who first said that whenever a committee chooses a color, it's beige. I do know that strategy is often annoyingly obvious. The simplest output of a SWOT analysis (strengths, weaknesses, opportunities, and threats) is often the best.
Still, strategy isn't done best by committee, consensus, or vote.
There's a reason some people end up in marketing, others in sales, finance, or operations. One would hope, somehow, that the finance people do the finance, and the marketing people the marketing.