This is a good question and one that I have seen many people wrestle with. I have seen some try to handle this by having joint leaders of a church or a team of leaders. The problem this creates is people still have a tendency to look for a king so you sometimes end up with the “I am from Paul/I am from Apollos” syndrome. I think Andrew is right that it is not a simple formula and does have to do with the personality of the leader. I think a leader should lead within an accountable environment. I think some leaders try to allow the body to make all the decisions and it does become chaotic. I think collaboration with the body is important because each member is a part of the body and has a part to play, but I think instead of asking the body to collaborate about the beach, a leader should set the overall parameters of the sandbox and let the body collaborate within that sandbox. Too many leaders make the mistake of not giving this level of guidance about what their church is about or what their focus is and therefore struggle with moving ahead as a unified body. The people need to know the vision and the leader needs to articulate that based on what he/she feels God is calling that church to and then they can step aside or join in the process of seeing that vision fulfilled through God’s Spirit. That’s just my two cents worth. I have seen this break down before due to a fear of asserting authority or asserting authority to build my own kingdom (on the extremes) and I think a leader needs to come to the middle.