This is a hot-button topic; I look forward to additional contributions here.
[yesterday] We only hire the best means we only hire the trendiest (2016) | https://news.ycombinator.com/item?id=15591441 (2017Oct;596comments)
[one week ago] If you care about diversity, don't just hire from the same five schools | https://news.ycombinator.com/item?id=15543371 (2017Oct;479comments)