What are the facts? Again and again and again — what are the facts? Shun wishful thinking, ignore divine revelation, forget what "the stars foretell," avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history" — what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!
Robert Heinlein (1978)
So what are the facts around anything and everything about project management improvement? Can a book tell us how to improve without controlled case studies and working examples? Probably not. Can a "body of knowledge" provide improvements without a practice guide for a specific domain? Probably not. Can we hire a project manager (or anyone for that matter), without tangible evidence that the skills, knowledge, and experience are in fact applicable to the problem at hand? Probably not.
But in all cases get the facts, ask for the facts, challenge the speaker or writer for the facts. Facts talk much more the suggestions, opinions, observations, or down right conjecture.
