Why was Robert E. Lee out of touch with Jeb Stuart before Gettysburg?

Before the Battle of Gettysburg, Robert E. Lee was out of touch with his cavalry commander, Jeb Stuart, because Stuart had embarked on a bold and controversial raid.12

Although Lee had ordered Stuart to deploy his cavalry as a screen for the advancing Army of Northern Virginia while simultaneously gathering intelligence on Union movements, Stuart chose to strike off on a sweep that took him completely around the Federal forces. This maneuver caused significant delays, leaving Lee without his "eyes of the army" during a critical phase of the invasion. Consequently, Stuart did not rejoin the main Confederate force until July 2, by which time the battle had already commenced and his exhausted troops were of little assistance.12