According to the PMBOKGuide 7th Edition, one of the principles of project management is to "tailor based on context". This means that the project manager should adapt the project delivery approach to the specific needs and characteristics of the project, the organization, and the stakeholders. Hybrid approaches are a way of combining predictive and adaptive methods to suit the project context and deliver value. The marketing director, as a key stakeholder, needs to understand and support the hybrid approach chosen by the project manager and the team. Therefore, the best option is for the project manager to mentor the marketing director on hybrid approaches, explaining the benefits, challenges, and best practices of using them. This will help the director to appreciate the value of the hybrid approach and provide the necessary guidance and resources to the project. The other options are not as effective because they do not address the knowledge gap of the director and may create resistance or confusion. Asking the director to participate in daily meetings may be too overwhelming and time-consuming for the director, and may not provide enough information or context on the hybrid approach. Asking the team members to coach the director may create role confusion and undermine the authority and credibility of the project manager. Training the team and keeping the director informed may not be sufficient to gain the director's support and involvement, and may create a disconnect between the team and the director. References: : PMBOKGuide 7th Edition, PMI, 2021, p. 9 : Agile Practice Guide, PMI, 2017, pp. 27-28