Not everything was going well with the Confederate advance. By 9:30 a.m., as the lead Union brigades were falling back, Nathan Bedford Forrest urged Bushrod Johnson to launch an all-out attack on the disorganized troops. Johnson was too cautious to approve of a general assault, but he did agree to keep the infantry moving slowly forward. Two hours into the battle, Gen. Pillow realized that Buckner's wing was not attacking alongside his. After a confrontation between the two generals, Buckner's troops moved out and, combined with the right flank of Pillow's wing, hit W. H. L. Wallace's brigade. The Confederates took control of Forge Road and a key section of Wynn's Ferry Road, opening a route to Nashville, but Buckner's delay provided time for Lew Wallace's men to reinforce McClernand's retreating forces before they were completely routed. Despite Grant's earlier orders, Wallace's units moved to the right with Thayer's brigade, giving McClernand's men time to regroup and gather ammunition from Wallace's supplies. The 68th Ohio was left behind to protect the rear.