[condiment]

The 'cost of a bad hire' is received wisdom that needs to go away. The first order effects of your team's time investment are easy to see and make good content for your engineering leadership blog when you're aiming for promotion. The second order effects are what get debated in threads like this ad infinitum.

Paradoxically, a higher bar for hiring increases these consequences for everyone. A bad hire is only consequential in the first place because hiring managers are slow to cut them loose. Managers are slow to cut loose because they are morally culpable for the consequences to the individual they hired. When a manager extends an offer, they are accepting some responsibility for a significant change in a person's life. It's very difficult to walk that back when it's a bad fit, knowing that hiring is a slow process and every other company out there is scared of making a bad choice. But at the end of the day, interviews are an approximation of the candidate/company fit in what is ultimately a matching problem. More attempts make for better matches. Companies and candidates both would be better served by being faster to hire and faster cut loose.