When Gen. Trapier was relieved of his command by Gen. Bragg the command of the brigade developed to Col. Manigault, and the regiment was led by its Lieutenant Colonel, James Pressley. In late July the brigade was transferred to Chattanooga by train as part of the army renamed to Army of Tennessee under command of Gen. Braxton Bragg; the II Corps now being Polk's. In November Col. Manigault was recommended to be promoted to Brigadier General by Gen. Withers. The 10th took part in the Confederate Heartland Offensive, including the Battle of Munfordville, and afterwards in the Stones River Campaign and the Battle of Murfreesboro.