Site Lead is a MNC coined job title for the incompetent person who they should have made Managing Director of the business but per experience had to choose her/him as the head of the business who operationally manages the Site and nothing more than that. All the decisions are made by their global counterpart.
Michael Scott is a great Site Lead. He is good with office operations and throwing parties. Poor guy, can't take shots, his decisions are made by his boss sitting in San Diego.