Strategy is guidelines for decision-making amidst competitive uncertainty, to get an advantage.
Strategy helps deal with the 3 "C's" of the competitive environment: complexity, competition, and constraints.
Sometimes a plan is necessary. But sometimes the best plan is no plan at all.
"Hit 'em," or, "Hit 'em where they ain't?" Sometimes you need to beat the competition at their own game, but sometimes the best strategy is to avoid a competitor's strengths.