The leader communicates the vision and announces the plan. He selects and commissions a team to find the way to make it happen. Consensus is good to a point. Then it's all about the leadership. The team are not the ones to say whether it can or cannot be done. Moses' team exceeded their commission. They were meant to find a way to implement their leaders' vision. The finance people are not to say whether it can or can't be done. The HR people, the PR people, the management team are to find ways to make it happen, not find reasons why it can't happen. A majestic thing is a leader and his team working together properly (Proverbs 30:30,31)