"Fit5/ It’s not enough to have a distinctive value chain. Its various components should also fit tightly together. Another Porter quote here:
Strategy is creating fit among a company’s activities. The success of a strategy depends on doing many things well — not just a few — and integrating among them. If there is no fit among activities, there is no distinctive strategy and little sustainability. Management reverts to the simpler task of overseeing independent functions, and operational effectiveness determines an organization’s relative performance.
Fit, I think, is the key strategic principle that has been the most ignored by traditional companies in the past 30 years. From what I have observed working with those companies and speaking with their managers, most transformative efforts in the past have tried to loosen fit rather than strengthen it."
Trecho retirado de "A Stout Porter: Business Strategy In the 21st Century"