This document discusses the key principles of strategy. It states that operational effectiveness alone is not a strategy and that strategy requires unique activities that create a sustainable strategic position through necessary trade-offs. It also discusses that competitive advantage and sustainability come from achieving a strategic fit among a company's activities through consistency, optimization of efforts, and reinforcing activities. The document notes common strategy problems such as misguided views of competition, failure to choose by not making trade-offs, and getting trapped by only focusing on growth. It advocates for profitable growth by leveraging a unique existing activity system and the important role of leadership in defining and communicating the strategy.