The scenario described is a classic example of how even a seemingly successful DevOps effort can quickly turn into a disaster if not properly measured and monitored. Gamechanger Industries' application was initially a hit, but it suffered from performance bottlenecks due to its centralized database, leading to a bad user experience. To avoid similar situations, it's essential to track key performance indicators (KPIs) such as uptime, app response time, database response time, and resource utilization. By doing so, teams can catch performance problems before they manifest at scale and ultimately improve the customer experience and business success of their DevOps efforts.