Buell conducted a half-hearted pursuit of Bragg and returned to Nashville, rather than pushing on to East Tennessee as the Lincoln administration had wished. Pent-up dissatisfaction with Buell's performance resulted in a reorganization of the Western departments. On October 24, a new Department of the Cumberland was formed under Maj. Gen. William S. Rosecrans, and Buell's Army of the Ohio was assigned to it, redesignated the XIV Corps. (After the Battle of Stones River at Murfreesboro in late December, another strategic defeat for Braxton Bragg, it would receive its more familiar name, the Army of the Cumberland.) Buell was ordered to appear before a commission investigating his conduct during the campaign. He remained in military limbo for a year and a half, his career essentially ruined. He resigned from the service in May 1864.