The tendency to look back and think you know what contributed to a success is called survivorship bias. It occurs when you make a decision or take some action based on past successes while ignoring past failures. That's why it's important to approach reports of successful projects with a healthy dose of skepticism.

Building good habits is an important part of an effective Scrum team. Habits are a form of automation: The more basic processes we can automate, the more we can focus our energy on hard things. The Scrum process, with its focus on rituals, helps us by providing a framework for collaboration and making it second nature.

Testing can get complicated when each project is using a completely different toolset, language, and reporting status, with different measurements and formats. Testing is a reaction to context and what we encounter, so how we test cannot be standardized. What we can standardize is the stuff that surrounds the testing.