Little research examines scaled culture change attempted across a network of institutions moving toward more enterprise-level changes. This study attempts to fill that gap by studying the American Association of Universities (AAU) Undergraduate science, technology, engineering, and mathematics (STEM) Initiative and its attempt to scale culture change related to improving STEM teaching across the entire AAU network. The findings show that culture change was being facilitated through AAU's development of institutional logics that created a new and compelling value system for campuses. However, the logics and conversations had not translated into widespread changes in institutional practices, policies, and structures. The study also identifies hidden values that can play a role in stalling scaled culture change.