The declaration of something as a "best practice" begs for curiosity about best where, when, how, for whom with what adaptations required?
The reality is, with so many people daily experimenting with new practices under the radar, it's literally impossible to know at any point in time the best, worst and most mediocre practices around.
This is cause for boundless exploration and openness to discovering what other organizations and team find better for them. All of the nimble team practices described in "The Growth Imperative" have many times over proven to be better practices for a variety of organizational applications.
The key to adopting better practices is experimenting from curiosity not implenting from assumption that use contexts don't really matter.