The document discusses the importance of network performance management for modern enterprises. Today's networks are highly complex with thousands of interconnected applications and devices. Bandwidth-hungry applications are placing immense pressure on networks. However, many IT managers rely on legacy monitoring tools that cannot handle large, complex networks or monitor in real-time. The document argues that updated performance management systems are now intuitive, scalable, and affordable enough to monitor entire networks. Not investing in these tools is a false economy that can waste resources and hurt business performance.