I think you may have both misunderstood my comment and made my point. 1) if that's the case, how could spending time and resources in complicated interviewing

I think you may have both misunderstood my comment and made my point. 1) if that's the case, how could spending time and resources in complicated interviewing processes help with that? 2) if you don't f*ck with candidates and have them jump through stupid rounds of interview, hiring may not be that hard. 3) Bad culture comes from the top, not from the code monkey. Sure projects fail, sure they end up being not very satisfactory, but it's not because your complicated interviewing process didn't prevent you from hiring bad people.