Lincoln had good reason for hesitating to change commanders, for, unsatisfactory as McClellan had proved, the President was by no means sure that any of his other generals would do better. In fact, with all his defects, there was much to be said in McClellan's favor. As an organizer of troops or chief of staff he had displayed talents of the highest possible order, transforming the armed mob which had flocked to the defense of the Union at the opening of the war into a well-drilled and disciplined army. That he had not accomplished much with this great engine of war after it had been constructed, had not been wholly his fault, for he had never been entirely free from interference at the hands of incompetent superiors, and he had had the misfortune to be pitted against a past master of the art of war. Moreover, he had been called to the chief command at a moment of panic and peril and, if he had not succeeded in defeating Lee, he had, at Antietam, given the North the only semblance of victory which it could claim in all its campaigning in the South. But that one taste of triumph had whetted the public appetite for more. Despite McClellan's continuous talk about the overpowering numbers of his foes, the supporters of the Union knew that they outmatched the Confederacy in men, arms, ships, money, and resources of every kind. They accordingly insisted that the immense army which had lain idle in its camps for almost two months after the drawn battle at Antietam should be set to work. In response to this popular demand, General Ambrose Burnside was appointed to take McClellan's place, and a more utterly unfitted man for prosecuting a successful campaign against Lee could scarcely have been selected. He himself fully realized this. Indeed, he had already twice refused the chief command on the ground that he did not feel competent to conduct a great campaign. But the public, which had become disgusted with boasters, admired his modesty, and his preparations for carrying the war again into Virginia were followed with high hopes for his success. The officers of the army, however, did not share the popular confidence in their new chief and some of those highest in authority gave him only a half-hearted support. But nothing could have saved Burnside's extraordinary campaign. Had he been assigned to lead a forlorn hope, regardless of consequences, his plan, if it can be called a plan, might have been justified, but under the existing circumstances it was reckless to the point of madness. His first moves, however, were characterized by an excess of caution and so slowly did he advance that before he was fairly started for the South, Lee blocked the road, concentrating his whole army on the hills behind the City of Fredericksburg in a position practically defying attack.