Sometimes, we make mistakes. Even if we’ve analyzed our options thoroughly and made what we thought was a good decision, we don’t always end up with the result that we wanted or expected. We uncover that we’ve made an erroneous assumption, that the world wasn't quite the way we thought it was.
Some people place this in the category of failure. But you don’t want to make a mistake and not capture some insight from that experience. It’s important to learn from your actions, especially the ones that didn’t work out the way you expected. This learning can be implemented at both an individual and a company-wide level.