Even if the guy was in good shape as he started this war, I just don't see how anyone that age (73) could maintain health, alertness, and open-mindedness over the course of a three year slog.
Rummy isn't a paratrooper. Buffett is pretty sharp at roughly the same age.
No, he thinks he's a gereral.

Now tell me, what is our "up or out" policy, and retirement age for generals?  Is the current thinking in the Pentagon that the age for "micromanaging" a war is 70+?

(I certainly hope Buffett is keeping a lighter schedule than Rummy.)

It isn't age. I suspect that Rummie was always the brightest kid on the block. Mostly I suppose he still is, but an unwaivering belief in your own judgement can be is a problem if that judgement is wrong ... and even the best and "the brightest" are going to be wrong from time to time. Lord man show a little humility from time to time.