Recently I asked three corporate executives what decisions they had made in the last year that they would not have made were it not for their corporate plans. All had difficulty in identifying one such decision. Since each of their plans were marked 'secret' or 'confidential', I asked them how their competitors might benefit from the possession of their plans. Each answered with embarrassment that their competitors would not benefit. Yet these executives were strong advocates of corporate planning.

p. 1 as cited in: Henry Mintzberg (1994) Rise and Fall of Strategic Planning. p. 98. - A concept of corporate planning, 1969