#6: Strategy vs. vision.
Strategy is not vision. Strategy has more in common with the minutiae of tactics than the aspirations of vision. Strategy provides a clear assessment of the situation — being strategic means to confront reality. Strategy acknowledges constraints, and is guided by those constraints to make uncomfortable trade-offs.
Contrast this with vision, which illustrates a more perfect world, and operates through a nudges, being a gentle aligning pressure.
Yet they complement each other. Vision unifies a company weakly. Strategy unifies a team strongly. If strategy guides your next step, visions ensures the ones to follow are in the right direction.