This white paper addresses the often-overlooked roles and responsibilities critical for managing, maintaining, and streamlining Model-Based Engineering (MBE) efforts. It highlights key roles such as the Model Sheriff, Model Librarian, and Application Manager, explaining their practical applications within organizations. By defining these roles and exploring their impact, the paper provides valuable insights into implementing MBE best practices and processes. Attendees will gain a comprehensive understanding of how these essential roles can transform their organization’s digital engineering paradigm, leading to more efficient and effective engineering efforts.