When it comes to leadership one thing is most certainly non-negotiable: YOU ARE A LEADER OF ALL.
While you will lead many and you will never get to pick and choose who you will lead. Actually, those you lead will select you to lead them.
That is why it is important to remember that when are leading you have to lead everyone, including those that are being led by others.
Why include others? Simple. As a follower, it is good to know that they are part of an organization or group that has many, multifaceted leaders.
Besides who wants to be part of an organization that has only one leader? Remember, having only one leader is the fast track to a Dictatorship.