We used timed (8 hours), paid homework to hire recently. It definitely was really helpful for one position in particular. Dunno why the article doesn’t mention

We used timed (8 hours), paid homework to hire recently. It definitely was really helpful for one position in particular. Dunno why the article doesn’t mention this option. Looking at the profile of the blog post’s author, she went to a prestigious school, worked at prestigious companies, and wrote a book on whiteboard challenges. It is clearly very heavily in this person’s favor that interviews stay focused on these criteria over actual performance. Our homework ended up weeding out some impressive looking candidates in favor of people who were less impressive and good at interviews but better at getting things done.