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.

You overcome the logical resistance to change by proving that a new approach actually works, usually on a small scale.

One of the problems many leaders report is a gap between strategy and execution. Usually this "gap" arises because the so-called "strategy" is a set of financial performance goals, not an approach to overcoming challenges. The two key ways to narrow this gap are to avoid bad strategies that fail to explain how to proceed and to establish a proximate objective - something which can be accomplished and which will open the door to further progress.

A real strategy is not bottom up because it deals with issues that require unexpected or unusual types action, especially of coordination among units.

A good strategy is not always successful, but even an "inappropriate" strategy may be an actual strategy. A "bad strategy" is one that doesn't even try to address an important challenge. Instead, it speaks of aspirations, visions of the future, lays out performance goals, or simply lists a bunch of unconnected actions.

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.

Change is difficult and it takes time. It is hard for people to change their own behavior, much less that of others. Change programs normally address attitudes, ideas, and rewards. But the behaviors of people in organizations are also strongly shaped by habits, routines, and social norms. Real change requires new power relationships, new work routines and new habits, not just intent.