Improved coordination of care among team members is the most relevant indicator of successful team nursing implementation. Team nursing emphasizes collaborative care delivery where multiple staff members with varying skill levels work together under the guidance of a team leader. When implemented effectively, this model enhances coordination, utilizes staff according to their scope of practice, and promotes efficient care delivery. While the other options may be beneficial outcomes, they don't directly reflect the core purpose of team nursing, which is to foster coordination and collaboration.