If the idea doesn't matter, the method of getting the idea should matter even less. What's important is whether the team can a) respond to feedback on their idea and b) code quickly and effectively to put that response into action.
The idea matters a bit, even if it's not the top priority. If the idea doesn't matter at all, why not just take your team of gifted programmers and start a consulting company hacking and finishing all client requests in 72 hours or less? If such a company existed, they can probably charge six figures for every project they take on.
