From ~ David Ogilvy in Charles Coolidge Parlin Memorial Lecture, 1972
“Winston Churchill’s ancestor, the first Duke of Marlborough, was reconnoitering the ground. He and his staff were on horseback. Marlborough dropped his glove. Cadogan, his chief of staff, dismounted, picked up the glove and handed it back to Marlborough. The other officers thought this remarkably civil of Cadogan. Later that evening, Marlborough issued his final order: ‘Cadogan, put a battery of guns where I dropped my glove.’ ‘I have already done so,’ replied Cadogan.
“He had read Marlborough’s mind, and anticipated his order. Cadogan was the kind of follower that makes leadership easy. I have known men whom nobody could lead.”