Network modernization and transformation, from the datacenter to the wide area network (WAN) and the branch, are necessary and integral facets of broader enterprise efforts to comprehensively modernize IT infrastructure and processes in service to digital transformation (DX). As applications have become increasingly important to business outcomes, and as the application landscape has been redefined by cloud and multicloud, the network must adapt architecturally and operationally. This change must occur in the datacenter, where fixed boundaries have been redefined by cloud, and at the branch, where application-driven connectivity requirements and operational needs have similarly been recast by cloud adoption. The focus now is on intelligent network automation and increased programmability, which provide the agility, flexibility, security, and elastic scale that cloud applications require. In this white paper, IDC examines why extensive network transformation must accompany digital transformation and explores how IBM seeks to help enterprises address changing architectural and operational requirements from the multicloud datacenter network to the WAN.