The document describes a next generation multi-disciplinary program management office (PMO) model called the Program Service Office (PSO). The PSO aims to combine PMO, Lean, and Agile services to accelerate project delivery, improve portfolio management, and increase maturity in delivery processes. Key aspects of the model include integrating multiple departments, establishing a governance structure, implementing project portfolio management, and focusing on change management and communications. The goal is to help organizations better achieve their strategic objectives through improved delivery of projects and programs.