The Battle of Chancellorsville has been called "Lee's perfect battle" because of his ability to vanquish a much larger foe through audacious tactics. Part of Hooker's failure can be attributed to an encounter with a cannonball; while he was standing on the porch of his headquarters, the missile struck a wooden column against which he was leaning, initially knocking him senseless, and then putting him out of action for the rest of the day with a concussion. Despite his incapacitation, he refused entreaties to turn over temporary command of the army to his second-in-command, Maj. Gen. Darius N. Couch. Several of his subordinate generals, including Couch and Maj. Gen. Henry W. Slocum, openly questioned Hooker's command decisions. Couch was so disgusted that he refused to ever serve under Hooker again. Political winds blew strongly in the following weeks as generals maneuvered to overthrow Hooker or to position themselves if Lincoln decided on his own to do so.