Executives are doers; they execute. Knowledge is useless to executives, until it has been translated into deeds. But before springing into action, the executive needs to plan his course. He needs to think about desired results, probable restraints, future revisions, check-in points, and implications for how he’ll spend his time.

“If there is any one “secret” of effectiveness, it is concentration. Effective executives do first things first and they do one thing at a time.

Effective executives know that they have to get many things done—and done effectively. Therefore, they concentrate—their own time and energy as well as that of their organization—on doing one thing at a time, and on doing first things first.

Executives are doers; they execute. Knowledge is useless to executives, until it has been translated into deeds. But before springing into action, the executive needs to plan his course. He needs to think about desired results, probable restraints, future revisions, check-in points, and implications for how he’ll spend his time.

“If there is any one “secret” of effectiveness, it is concentration. Effective executives do first things first and they do one thing at a time.