Which folks who work there, the troops fighting for freedom, or a bunch of desk jockeys? The old garde in the Pentagon does not like Rummy becuase he makes them work their arses off and demands accountability at all levels. His Transformation Plan is brilliant, but people don't like change, especially in comfortable jobs.
What about HIS accountability...look, I remember a pretty good Chief of Naval Operations who resigned his post after the infamous tailhook and Iowa tragedy because in his words he became "a lightening rod" for the Navy. Well, Rummy is that lightening rod for the GOP!