Top Army officials also are trying to change a culture that discourages good officers from taking advisory posts. Over the past decade, the path to success has been through conventional combat jobs in big brigades. Gen. Peter Schoomaker, the Army's top officer, uses a track analogy to describe the problem. The Army, he says, is full of specialists, or "single-event people." To prevail in today's wars, he says, he needs "pentathletes" with a broader range of experiences.