Why did Confederate leaders hope Nathan Bedford Forrest's 1864 raid would disrupt William Tecumseh Sherman's plans?

Confederate leaders hoped that raids conducted by Nathan Bedford Forrest and other cavalry commanders would disrupt William Tecumseh Sherman’s military operations by menacing his lines of communication and supply in his rear.1

During the 1864 campaign, Sherman relied heavily on secure supply lines to support his advance toward Atlanta. By targeting these vital railroads, depots, and communication networks, Confederate forces aimed to hinder Sherman’s progress and force him to divert resources or attention away from his primary objectives. While these raids were considered audacious and were often successful in causing damage, they were ultimately viewed as more annoying than decisive, as Sherman was able to press forward with his campaigns despite the persistent threat to his rear.1