Exactly....which is why he was eventually fired by Lincoln and replaced by Grant (who had been a total failure as a civilian). Strange how war plucks otherwise-”losers” from obscurity and propels them to greatness at key times in history.
He wasn’t fired by Lincoln and replaced by Grant. He was replaced by Ambrose Burnside. Burnside was replaced by Joe Hooker, and Hooker by George Meade. Meade continued as commander of the Army of the Potomac under Grant, who was general in chief of all Union armies.