...although a despatch from Dana to Stanton, Crawfish Springs, September 16th, shows that a possibility of such reinforcements, by the way of Ringgold or Dalton, had been considered, but that no part of Longstreet 's corps had yet been received at Lafayette, which on that day was the seat of Bragg's headquarters. There is no sign yet that Rosecrans had thought of changing from the offensive to the defensive, ...