Cheney was among the best secretaries of defence the country has ever had. He was a very effective White House chief of staff. He did not make many enemies, and he had the ability to persuade people with that soft tone and very reasonable style of his. He's always been exceptionally good as the right-hand man.
I doubt there's any government in the world that guides itself primarily by strategy or conceptual documents or worldview. Anybody who has the reins of power has to look at practical limitations and tradeoffs - the fact that you can focus at most on one or two things at a time, that resources are limited.