According to the PMBOK Guide, the project manager should assess the required training per team member as part of the plan resource management process. This process involves identifying and documenting the project roles, responsibilities, skills, and competencies, as well as the training needs of the project team members.
The project manager should also consider the project life cycle approach, whether it is predictive, adaptive, or hybrid, and the implications for the team's knowledge and skills. The project manager should not coach, change, or deliver training to the team members without first assessing their training needs and gaps, as this may not be effective or efficient. References: PMBOK Guide, 7th edition, pages 307-308, 311-312.