This document discusses how modern enterprises can benefit from architectural shifts in adopting cloud-first WANs in the post-pandemic era. It notes that traditional MPLS and SD-WAN networks are either/or approaches, while a cloud-first WAN provides an integrated "and" approach combining connectivity, application performance, security, and manageability. A cloud-first WAN delivers highly predictable application performance across any app, connects anywhere, and provides security everywhere through a fully managed, global service with built-in optimization and acceleration.