Sorrow is better than fear. Fear is a journey,a terrible journey, but sorrow is at least an arrival. When the storm threatens, a man is afraid for his house. But when the house is destroyed, there is something to do. About a storm he can do nothing, but he can rebuild a house.
A good strategy focuses efforts on a target, and that focus can only be achieved by not diffusing energy in other directions - that is the meaning of Michael Porter's dictum of "choosing what not to do. " At the same time, a good strategy chooses the right target to focus on, not wasting the focus of energy on a target that cannot be affected or that is unimportant - that is the meaning of Drucker's distinction between efficiency and effectiveness.