In the context of project management, when faced with delays in essential materials that impact the project schedule, it is advisable to explore alternative sourcing options. According to the PMBOKGuide, project managers should consider various procurement strategies when project constraints arise, such as schedule delays due to external dependencies. Exploring local suppliers could potentially mitigate the risk of further delays and align with the procurement management plan, which is a key component of the overall project management plan. This approach is supported by the principles of stakeholder engagement and resource optimization, ensuring that the project's objectives are met while adapting to changes in the project environment.
References:
* PMBOKGuide1
* PMP Examination Content Outline2
* Professional in Business Analysis Reference Materials3.