As per GPT - Choice A, "Set expectations with the new team member and explain what is needed," is indeed a critical step in integrating a new team member. However, it primarily focuses on one-on-one communication between the project manager and the new team member, rather than fostering team cohesion and transparency. While setting expectations with the new team member (Choice A) is necessary, meeting with all team members to explain the new employee's position (Choice D) is more comprehensive. It not only sets clear expectations but also promotes team cohesion, transparency, and collaboration, which are essential for effective integration and leveraging the new member's agile experience. Therefore, Choice D is the more effective approach in this context.