McClellan’s replacement as general in charge of the Union Army of the Potomac was not the only command changes made in the Union and Confederate armies in early November 1862.
On November 5 Lincoln also replaced General Fritz John Porter from his corps command; Porter, a pro-McClellan corps commander, would be charged with willful disobedience to orders at the battle of Second Manassas. He would be replaced by Joseph Hooker.
The Confederate War Department on November 6 promoted both James Longstreet and Thomas Jackson from major general to lieutenant general and to command of the First and Second Army Corps, respectively. These significant command moves in both the North and South would greatly affect the outcome of battles soon to come in the American Civil War.