http://www.corporatelevelstrategy.info. This is a lecture tutorial on the two big challenges at corporate headquarters: how much to centralise and how much to integrate. It is drawn from the book "Strategy for the Corporate Level: Where to Invest, What to Cut Back and How to Grow Organisations with Multiple Divisions", Jossey Bass, 2014. There is also a course at Ashridge Business School http://www.ashridge.org.uk/gls