What sort of organization structure and culture enhances the prospect of a successful project outcome?

Question

Here are some lessons learned on Project Management:

1) Technical direction cannot be separate from cost and schedule decisions. The PM must be able to trade off technical, cost, and schedule

2) There must be clear funding authority and responsibilites for the project.

3) Auditors independent of the PM are needed: PM must have clear legal and logic in their decisions in the audit trail.

4) The culture of the PM and his staff must be recipient to drastic change, and flexible in attitude. Murphy's law applies.

5) The PM staff have to be able to quantify and manage risks in cost and schedule. Nothing is ever known with certainty.