The General Patton of the Civil War--or Patton was the General Sherman of WWII.
Wars are organized and led to victory by the bigwigs--Washington, Grant, Eisenhower, Powell--but actually won by the generals who take the risks--Wayne, Sherman, LeMay, Patton, Halsey, Schwarzkopf--and the men who take the bullets.
Excellent...and, equally interesting is that many of our top generals and admirals were low to mediocre performers at the Academies.
Another excellent book on this subject is, Last in their Class, Custer, Pickett and the Goats of West Point, by James S. Robbins. Very good read on military leadership and the formation of West Point.