Just a quote...

"While certainly not dead, strategic planning has long since fallen from its pedestal. But even now, few people fully understand the reason: strategic planning is not strategic thinking. Indeed, strategic planning often spoils strategic thinking, causing managers to confuse real vision with the manipulation of numbers. And this confusion lies at the heart of of the issue: the most successful strategies are visions, not plans."

-- Henry Mintzberg, "The Fall and Rise of Strategic Planning" in MBA in a Box, edited by Joel Kurtzman.