The WSJ had a piece in 2018 which sparked a bunch of follow-on coverage:
"Mr. Hastings’ ring of top executives take the keeper test seriously. At a meeting in late spring of Netflix public-relations executives, one said every day he comes to work he fears he is going to get fired. Karen Barragan, the vice president of publicity for original series, asked how many other people felt that way. A number of hands went up. “Good, because fear drives you,” Ms. Barragan said, according to people familiar with the meeting."
https://www.wsj.com/articles/at-netflix-radical-transparency...
Other coverage from 2018:
https://qz.com/work/1439451/the-seven-ways-netflix-culture-s...
https://variety.com/2018/digital/news/netflix-culture-of-fea...
https://theweek.com/articles/805123/netflixs-culture-fear
Older coverage:
https://www.businessinsider.com/netflix-culture-of-fear-2010...