Final answer:
Eli Whitney would have the most different management style.
Step-by-step explanation:
The historical figure who would probably have the MOST different management style from the others listed is Eli Whitney.
Eli Whitney was an American inventor and engineer who is best known for inventing the cotton gin. While he made significant contributions to technology and manufacturing, his management style was not as focused on efficiency and standardization as the others.
Frederick W. Taylor, Elton Mayo, Henry Ford, and Adam Smith all advocated for scientific management principles, time-motion studies, and the efficient use of resources in their management styles.