The tech sector, which was built on start-ups and ruthless competition, brought forward a whole new style of doing business. The ability to experiment, fail fast, learn from mistakes and continue to innovate in beta has re-written the rules of business for everyone. Even using the category of “tech sector” is a misnomer as technology is a tool that is present and used by businesses to innovate and disrupt in all sectors. Last week’s news that the Microsoft update performed by Crowdstrike causing a service outage that impacted many businesses reliant on their technology demonstrates the problems with this approach. There is probably no going back to the slower pace of change, which means that mistakes will become ever more frequent. My argument today is that legacy companies have adopted some, but not all, of the practices that make this style of business effective. Specifically, an internal process to fully debrief and learn from mistakes is still absent and company execs prefer to focus only on successes.