Frederick Winslow Taylor (1856-1915) was an American mechanical engineer who sought to improve industrial efficiency. He is regarded as the father of scientific management and was one of the first management consultants. Taylor was one of the intellectual leaders of the Efficiency Movement and his ideas, broadly conceived, were highly influential in the Progressive Era. Taylor was a mechanical engineer who sought to improve industrial efficiency. Taylor is regarded as the father of scientific management, and was one of the first management consultants and director of a famous firm. Taylor was also an accomplished tennis player. He and Clarence Clark won the first doubles tournament in the 1881 U.S. National Championships, the precursor of the U.S. Open. Future U.S. Supreme Court justice Louis Brandeis coined the term scientific management in the course of his argument for the Eastern Rate Case before the Interstate Commerce Commission in 1910. Brandeis debated that railroads, when governed according to the principles of Taylor, did not need to raise rates to increase wages. Taylor used Brandeis's term in the title of his monograph The Principles of Scientific Management, published in 1911. The Eastern Rate Case propelled Taylor's ideas to the forefront of the management agenda. Taylor wrote to Brandeis "I have rarely seen a new movement started with such great momentum as you have given this one."