Longstreet took additional advantage of the confusion to increase his chances of success. The organization of the attack was well suited to the terrain and would have penetrated the Union line regardless. Bushrod Johnson's division poured through the gap, driving the Union forces back. After Longstreet ordered Thomas C. Hindman's division forward, the Union right collapsed entirely. Rosecrans fled the field as units began to retreat in panic. Thomas managed to rally the retreating units and solidify a defensive position on Snodgrass Hill. He held that position against repeated afternoon attacks by Longstreet, who was not adequately supported by the Confederate right wing. Once night fell, the battle was over, and Thomas was able to extricate the units under his control to Chattanooga. Bragg's failure to coordinate the right wing and cavalry to further envelop Thomas prevented a total rout of the Union Army. Bragg also neglected to pursue the retreating Federals aggressively, resulting in the futile Siege of Chattanooga. He had dismissed a proposal from Longstreet that he do so, citing a lack of transportation and calling the plan a "visionary scheme". Nevertheless, Chickamauga was the greatest Confederate victory in the Western Theater and Longstreet deserved and received a good portion of the credit.