General management is profit center management. It is management of both marketing-sales and operations or supply chain function and the necessary support functions.
What is the scope for this activity in corporate sector?
In the Book Meta Analytic Organization, by Lex Donaldson, http://books.google.co.in/books?id=KwE5hMr-2YsC page 115, it is mentioned that an average firm has 50 profit centers.
ABB has 5000 profit centres.