Do the words 'Leadership' and 'Hierarchy' no longer apply to each other? Dan Oestreich thinks so.
"In past models, a manager or team of people might propose a change, but the change must be “approved” before implementation. The approver is separate and distant from the change and its design, and only gives a thumbs up or down response based on his/her personal judgment, biases and agendas.
In my experience, this approval based approach is what alters everything that happens.