HCA 455 Topic 3 Assignment, Interview a Health Care Organization Leader HCA 455 Topic 3 Assignment, Interview a Health Care Organization Leader Also read: HCA 455 Topic 8 Benchmark Assignment. Diversity in Health Care HCA 455 Topic 4 Assignment, Transitional Care Application Roles and Organizational Structure HCA 455 Topic 5 Assignment, Community Care Application – Communication and Group Dynamics HCA 455 Topic 4 Assignment, Transitional Care Application – Roles and Organizational Structure HCA 455 Topic 6 CLC Assignment, Primary Care Provider Application, Organizational Development and Change