I'm not sure Spotify has really made any mistakes here though. They took a risk that didn't pan out. For an omnipotent being that would be a mistake, but for a person that only has the information available at the time it can still have been the right bet.
Firing people when their bets don't pan out just leads to a risk averse culture that dooms any company to failure
Firing people when their bets don't pan out just leads to a risk averse culture that dooms any company to failure