An old view on 'Planning'
He taught that strategy was not planning in the sense of working through a to-do list, but rather that it requires quick and appropriate responses to changing conditions. Planning works in a controlled but competitive environment, and competing plans collide, creating situations that no one planned for.
I feel I agree with this view of strategy and planning more than with the view of planning as a “to do list” that usually stresses me out. I like planning and having two (or more?) possible routes of action. That is good planning and it allows for consideration of the things that can happen.