You need self-disciplined people to perform the practices correctly and maintain rhythm and frequency of delivery. You need people to execute well.
3) Ease
You need people who invest effort into making their lives easy. This is not about shirking responsibilities or avoiding making commitments. It’s about reducing pain. For example, technical people maintain a code base that is habitable, where changes are comfortable to perform, by employing test-driven development and refactoring, and by fixing defects as they are found, minimising technical debt, and maintaining executable code through continuous integration. The value of ease should apply to everyone and all aspects of work.
4) Joy
You need people who insist on experiencing joy. People deserve to have fun at work. When people are skilled and disciplined, experiencing joy at work has only healthy and beneficial side effects.