Among the challenges befalling the Continental Army during the Valley Forge winter included poor organization. Two years of war, shuffling leadership, and uneven recruitment resulted in irregular unit organization and strength. During the Valley Forge encampment, the army was reorganized into five divisions under Major Generals Charles Lee, Marquis de Lafayette, Johan de Kalb, and William Alexander "Lord Stirling," with Brigadier General Anthony Wayne serving in place of Mifflin. Thanks to the widespread reorganization, unit strength and the terms of service became more standardized, improving the Continental army's efficiency.