After the battle of First Bullrun in 1861 could the South have marched on Washington?

While historians will continue to argue that question, the South did not leave the battlefield unscathed. Three Brigade commanders from the Army of the Shenandoah were unable to continue the fight: Edmund Kirby Smith was wounded, Francis S. Barton and Barnard Elliot Bee, Jr., were killed. Also, in the fog of war that followed the Union rout a political error may have been made when Jefferson Davis promoted the wrong man on the battlefield. P.G.T. Beauregard was advanced to the rank of Lieutenant General while Stonewall Jackson was ignored. Perhaps it made no real difference at the time, but a different commander just might have pushed the fight into the streets of the Union Capital.