The business strategy plays a part in our lives in many ways. You can have a "plan" – an idea of how you would like a situation to play itself out, but with out a clear, detailed business strategy, your plan will go nowhere.
Look at professional sports, for example. These guys are all "experts' in their sport, however, without their coaches providing them with well-thought out strategies, their good skills would not get them very far.
If just one part is out of whack, it will effect the others in the blink of an eye. High performance selling requires the discipline to look at each opportunity and say "What could I have done differently? By continuously adjusting and relaunching parts of my sales process, I was able to turn any "failures" into future successes.