Librarians play a pivotal role in bridging gaps and fostering learning across diverse global networks of campuses and learners. At Northeastern University's library, the Global Campus and Online Learning Unit (Online Learning, for short) supports the 16 (and growing) global campuses. The Online Learning unit has crafted an intermediary liaison approach to serving this large network in response to institutional culture and scaling needs. The unit liaises between different subject liaison groups in the library's Research and Instruction Department -- STEM, arts, social sciences, humanities, and entrepreneurship--and students across the network. Online Learning is also responsible for maintaining, creating, and assessing online learning objects, tutorials, and online learning research modules. Engineering students at any of the global campuses might reach out to the engineering liaison in the STEM group for research help, but librarians in the Online Learning group perform outreach to ensure these students, whose student experience is different from the in-person Boston experience, still know about the resources available to them. As the online learning environment becomes increasingly integral to education, librarians face unique challenges in serving a broad spectrum of users. This article delves into these challenges, exploring how librarians can adapt to changing needs and priorities while maintaining effective support for a global user base. The authors also examine departmental and organizational changes that enabled Northeastern University library to address these challenges effectively.