"He was a tactician of the greatest ability, with a firm grasp of every detail of the employment of armour in action, and very quick to seize the fleeting opportunity and the critical turning point of a mobile battle. I felt certain doubts, however, about his strategic ability, in particular as to whether he fully understood the importance of a sound administrative plan. Happiest while controlling a mobile force directly under his own eyes he was liable to overexploit immediate success without sufficient thought for the future."