The Senior Manager provides site-level leadership and operational ownership of clinical operations, with direct responsibility for staff management, study execution, regulatory compliance, strategic alignment with network leadership, and ensuring high-quality trial execution that meets sponsor expectations and business objectives. The Site Director assumes the same core clinical operations responsibilities while providing broader site-wide leadership through additional support of the Clinical Science function, clinician development, cross-functional performance, and integration of clinical science with site operations in partnership with Clinical Science leadership.