Joe McCarthy was a professional baseball player and manager who had a long and successful career in the Major Leagues. He began his career as a player in 1905 with the New York Yankees, and in 1906, he was traded to the Chicago Cubs. During his playing career, McCarthy was known for his defensive prowess and steady hitting. He was also known for his leadership abilities, which were apparent from the start of his career.

In 1912, McCarthy began managing in the minor leagues, and in 1915, he was hired as the manager of the Chicago Cubs. As the Cubs' manager, McCarthy led them to two National League pennants and one World Series championship. He was also known for his ability to develop young players, such as Rogers Hornsby and Kiki Cuyler.

McCarthy left the Cubs after the 1930 season and went on to manage the New York Yankees from 1931 to 1946. He was successful in New York, leading the Yankees to seven American League pennants and eight World Series championships. He was also known for his innovative use of platooning, which helped the Yankees take advantage of their deep roster of talented players.

In all, McCarthy won nine pennants and nine World Series championships as a manager. His career managerial winning percentage of .615 is the sixth-best all-time. He was elected to the Baseball Hall of Fame in 1957, and his number, 36, was retired by the Yankees in 1969. Joe McCarthy is widely regarded as one of the greatest managers in baseball history.