A PMHNP at a community mental health center recognized her burnout symptoms three months ago after screening positive on the Maslach Burnout Inventory across all three dimensions. Since then, she has reduced her work hours by 10%, started a weekly yoga class, improved her sleep hygiene, and begun seeing a personal therapist. Despite these consistent efforts, she continues to experience significant emotional exhaustion, cynicism toward patients, and documentation errors. Her caseload remains at 85 patients, the clinic still lacks protected documentation time, and she is the sole prescriber covering three separate programs. She asks a colleague why her individual efforts have not resolved her burnout. Which of the following best explains the persistence of her symptoms and identifies the most effective evidence-based approach?