"Now it turns out the rule 'large and disciplined organizations win' needs to have a qualification appended: 'at games that change slowly.'"

The pattern I see throughout history is that large organizations endure until some disruptive technology takes them down. (Greek hoplite armies vs. light infantry and archers, armored knights vs. longbows, cavalry corps vs. tanks.)

The modern age has simply accelerated the whole process. Technological change occurs increasingly quickly now, and so these "overturnings" happen more and more often. Because large organizations take time to form, the balance of power has shifted to small entrepreneurial organizations.