Neither capital nor labor

Unwittingly, the federal government did its part to create the modern consulting business. Starting in the last part of the nineteenth century, Washington made periodic regulatory efforts to curb the power of big business, including the 1890 Sherman Antitrust Act, the Federal Trade Commission Act and Clayton Act of 1914, and the Glass-Steagall Act of 1933. The intended effect of these measures was to prevent corporations from colluding with one another to fix prices and otherwise manipulate the markets. The unintended effect, according to historian Christopher McKenna, was to accelerate the creation of an informal — but legal — way of sharing information among oligopolists. Who could do that? Consultants.

Regulatory efforts paid another rich benefit to the likes of McKinsey: Restricted from cutting backroom deals with each other, firms were thus obliged to actually compete, which meant they needed to make their operations more efficient. Here again, consultants were the answer.

But perhaps the circumstance that most aided the creation of the consulting industry was the entry of a new, key player into business itself. Empire builders with names like Carnegie, Duke, Ford, and Rockefeller had built huge, vertically integrated companies, but they had neither the time, the talent, nor the inclination to create and carry out management systems for those entities. These were the conquerors of capitalism, not its administrators. And yet, as Chandler pointed out, “their strategies of expansion, consolidation, and integration demanded structural changes and innovations at all levels of administration.”

Into the breach stepped a new economic actor who was neither capital nor labor: the professional manager. Gradually, he replaced the robber baron as the steward of American business.

Duff MacDonald, from The Making of McKinsey: A Brief History of Management Consulting in America