Open Source or not you need someone or few someone, preferably dictatorial on top who have a cohesive vision of what they are making and who they are making it

Open Source or not you need someone or few someone, preferably dictatorial on top who have a cohesive vision of what they are making and who they are making it for. They should be a good communicator to sell more people to that vision and lot of luck because you'll still fail for multiple reasons.