Portfolio of Businesses
Let's start out by defining the Group Manager layer, since definitions can vary by organization and industry. A Group Manager is accountable for several businesses and may be called Group CEO, Region Executive, or Sector Executive. Some smaller companies have only one Group Manager; she might be the President or Chief Operating Officer. Group Managers are responsible for delivering the portfolio strategy, which includes deciding what businesses the enterprise should embrace and what businesses should be abandoned. They must also build succession to the Business Manager layer to be sure qualified people exist to run the businesses. I'll go into more depth about these two key contributions as well some others ...