This New Yorker article describes how the U.S. Army's officers are adapting to the war in Iraq. According to the article, "Whatever else the Iraq war is doing to American power and prestige, it is producing the creative and flexible junior officers that the Army’s training could not."
One reason for this success is that the younger officers "grew up with the Internet, and have created for themselves, in their spare time, a means of sharing with one another, online, information that the Army does not control. The “slackers” in the junior-officer corps are turning out to be just what the Army needs in the chaos of Iraq. Instead of looking up to the Army for instructions, they are teaching themselves how to fight the war. The Army, to its credit, stays out of their way."