C.K. Prahalad and Gary Hamel. Guess the names don’t quite ring a bell, especially if you are a management researcher. Certainly, not the same decibel as a Michael Porter or Phillip Kotler. However, their contribution to the theory of core competence, one of the most fundamental concepts in management is stellar.

What will I do differently? How do I standout from the crowd? Why should a customer choose me over a competitor? In a nutshell, what will be my competitive advantage? These questions resonate deeply in most entrepreneurs as they start out in the sometimes-dangerous world of entrepreneurship.
http://boardroomng.com/the-business-of-core-competence/