This article describes the school personnel and leadership collaboration (SPLC) model, a shared-responsibility framework for faculty, staff, and administrators. Prior research consistently demonstrates the need for (a) administrative support for teachers and other school personnel and (b) collegial support among staff. The SPLC model represents an amalgamation of this research and, moreover, integrates personnel support for leadership. In the managerial sciences, leader–member exchange (LMX) is a well-known relationship-based leadership approach that focuses on a dyadic or two-way relationship between supervisors and their employees. Though managers are responsible for overseeing operations, personnel contribute ideas, participate in decision-making, and follow through with their responsibilities. LMX is associated with positive work experiences and job performance outcomes. In contrast, schools are often run with a top–down leadership approach that solicits little to no input from staff, leading to low morale, high attrition rates, and negative school climate. Thus, the SPLC model was inspired by LMX and emphasizes practices, such as shared decision-making, staff autonomy, and shared responsibilities. Detailed examples of ways schools may apply the SPLC model to their practices are included.