In a matrix organization, it is essential for the project manager to collaborate with the project team to resolve resource availability issues. This approach is supported by the PMBOKGuide, which emphasizes the importance of team engagement and collective problem-solving in project management. By meeting with the project team, the project manager can explore various options, such as adjusting schedules, re-allocating resources, or finding alternative solutions to ensure that the necessary testing support is provided. This method aligns with the principles of stakeholder engagement and resource optimization1. References: * PMI's "A Guide to the Project Management Body of Knowledge (PMBOKGuide)" * PMI's "Business Analysis for Practitioners: A Practice Guide" * PMI's "The PMI Guide to Business Analysis"