"chaos" is what relatively unproductive people, or people-at-arms-length call it. "Doing the job" is another term. I've had to remind people several times not

"chaos" is what relatively unproductive people, or people-at-arms-length call it. "Doing the job" is another term. I've had to remind people several times not to apologise for "causing chaos" when the outcome of this supposed chaos is that the project was successful. The purpose of your job is success, not the perception of others that their charts lacked forewarning of all the unknowables needed to successful execute anything. Chaos in many cases is just what you call the experience of looking at a chart, or a model of any kind, when you're familiar with the reality it's supposed to depict