"Team of Rivals" by Doris Goodwin shows which President got the most productivity from his executive cabinet?

Acclaimed Pulitzer Prize-winning historian Doris Kearns Goodwin (b. January 1943) illuminates US President Abraham Lincoln's political genius in her 2005 work titled "Team of Rivals". In this monumental multiple biography, historian Doris Kearns Goodwin studies President Lincoln's mastery of men. She shows how he saved Civil War-torn America by appointing his fiercest rivals to key cabinet positions, making them help achieve his vision for peace.

Noted American historians from 2005 – 2021 have accordingly called Goodwin's work "a thrilling piece of narrative history as well as an inspiring study of one of the greatest leaders the world has ever seen". Goodwin spent ten years on the research and writing of "Team of Rivals". She stated that she had been inspired to tell the stories of four men (Seward, Chase, Bates, and Lincoln). Reviewing them together, she discovered that the cabinet members had written extensive diaries and letters that could provide a "new angle" on any study concerning Abraham Lincoln.

Abraham Lincoln (1809 – 1865) was the 16th President of the United States of America. He served as president for 5 years, from March 1861 until his assassination by John Wilkes Booth in April 1865. He is known primarily for his leadership during the American Civil War (1861–1865) and for signing the Emancipation Proclamation, an executive order changing the legal status of slaves to ‘free’.

Lincoln was largely self-educated; and, he acted to preserve the Union!