This case study describes how Porterville Unified School District (PUSD), a rural school district in California's Central Valley, began to fulfill its vision to transform high school and career education through the implementation of Linked Learning. Linked Learning is a state-wide initiative for redesigning large comprehensive high schools into smaller learning communities in the form of career-based pathways. The case explains how Porterville's district leadership team made Linked Learning the centerpiece of its district-wide reform effort and describes the key strategies the leadership team developed in collaboration with stakeholders to implement a system of pathways across five high schools. Appended are: (1) Data Collected for Porterville Case Study; (2) Porterville Pathways P8 Coalition By-Laws; and (3) Organizational Chart. (Contains 4 figures, 3 tables, and 9 endnotes.)