Final answer:
President Franklin Roosevelt used the "Brains Trust," a group of experts including Rexford Tugwell, Raymond Moley, and Adolph Berle, for advice instead of solely relying on his cabinet.
Step-by-step explanation:
President Franklin Roosevelt did not rely solely on his cabinet for advice; instead, he sought the counsel of a group of experts known as the "Brains Trust". This informal advisory team comprised of scholars and thinkers, including Rexford Tugwell, Raymond Moley, and Adolph Berle, offered Roosevelt a variety of perspectives and solutions to the nation's problems during the Great Depression. While Roosevelt's cabinet, including Secretary of Labor Frances Perkins and Interior Secretary Harold Ickes, played influential roles, it was largely the Brains Trust that helped to ideate and push new policies that aimed to reform the economic system rather than replace it entirely.
The Brains Trust provided Roosevelt with a wealth of ideas, which he implemented in various forms through programs like the Civilian Conservation Corps and the establishment of Social Security.