 Although Grant was the senior officer and technically was in command of both armies, Buell made it quite clear throughout the two days that he was acting independently.On April 8, Grant sent Sherman south along the Corinth Road on a reconnaissance in force to confirm that the Confederates had retreated, or if they were regrouping to resume their attacks.Grant's army lacked the large organized cavalry units that would have been better suited for reconnaissance and vigorous pursuit of a retreating enemy.