Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
People are your most important resource and truth is the foundation of excellence, so make your personnel evaluations as precise and accurate as possible. This takes time and considerable back-and-forth. Your assessment of how Responsible Parties are performing should be based not on whether they're doing it your way but on whether they're doing it in a good way. Speak frankly, listen with an open mind, consider the views of other believable and honest people, and try to get in sync about what's going on with the person and why. Remember not to be overconfident in your assessments, as it's possible you are wrong.