What they had discovered was that even the extremely smart, high-powered employees at Google needed a psychologically safe work environment to contribute the talents they had to offer. The team also found four other factors that helped explain team performance – clear goals, dependable colleagues, personally meaningful work, and a belief that the work has impact. As Rozovsky put it, however, reiterating the quote at the start of Chapter 1, “psychological safety was by far the most important…it was the underpinning of the other