One company I worked for a few years ago, I joined right as a just such a ground-up rewrite of their core system was coming into place. Everyone in orientation

One company I worked for a few years ago, I joined right as a just such a ground-up rewrite of their core system was coming into place. Everyone in orientation was telling me "You'll be spending most of your working life dealing with <new project codename>" but they were actually training me on the existing system. About a month out of orientation there is a company wide. They canceled <new project codename> because it wasn't meeting it's technical specs. It was also, coincidentally, the company where I most respected the key technical decision-makers, because they had the will to discontinue a product that a few customers already were using, because it wasn't meeting its criteria.