What is strategy - exactly?

The word strategy is used commonly, but frequently with disabling variation in understandings of its' role and purpose.
A common understanding of strategy's purpose will unify collaboration efforts and enhance strategy effectiveness.

References

Playing to win book cover

Playing to Win: How Strategy Really Works, 2013, A.G. Lafely and Roger L. Martin

Book cover

Good Strategy/Bad Strategy: The Difference and Why It Matters, 2011, Richard Rumelt

Book cover

Strategic Management: Concepts and Cases 3rd Edition, 2016, Jeff Dyer, Paul C. Godfrey, Robert J. Jensen, David J. Bryce

BYU

Understanding the four key questions that drive business strategy and help a company determine how to succeed in a particular industry or competitive marketplace, Brigham Young University