The Army's training program attracted criticism, both at the time and subsequently. In 1937, Brigadier General George C. Marshall felt that in merging instruction on command and staff duties, the Command and General Staff School had neglected the former in favor of the latter, with officers being prepared for staff duties in peacetime rather than the chaos of command in wartime. Brigadier General Lesley J. McNair conducted a survey of graduates in 1939 that found that most felt that there was too much emphasis on obsolete skills like equitation. For this reason, the staff rides were disliked. While most considered the map exercises the most valuable part of the curriculum, some noted that students spent time discovering for themselves things that they could have been told.