You cant manage what you cant measure is a maxim that is taught and believed by many in both the business and education sectors. But in fact, the phrase is ridiculoussomething said by people who are unaware of how much is hidden. A large portion of what we manage cant be measured, and not realizing this has unintended consequences. The problem comes when people think that data paints a full picture, leading them to ignore what they cant see. Heres my approach: Measure what you can, evaluate what you measure, and appreciate that you cannot measure the vast majority of what you do. And at least every once in a while, make time to take a step back and think about what you are doing.

Creativity, Inc. by Ed Catmull