Von Clausewitz summed up what it had all been about in his classic On War. Men could not reduce strategy to a formula. Detailed planning necessarily failed, due to the inevitable frictions encountered: chance events, imperfections in execution, and the independent will of the opposition. Instead, the human elements were paramount: leadership, morale, and the almost instinctive savvy of the best generals. The Prussian general staff, under the elder von Moltke, perfected these concepts in practice. They did not expect a plan of operations to survive beyond the first contact with the enemy. They set only the broadest of objectives and emphasised seizing unforeseen opportunities as they arose. Strategy was not a lengthy action plan. It was the evolution of a central idea through continually changing circumstances. Definitely the best passage from Jack Welch’s mediocre autobiography, Straight from the gut, p.448.