Final answer:
A Scrum Master should be mindful of how the integration of an external specialist can affect team collaboration and potentially delay the project timeline. They need to facilitate communication and trust among team members and effectively manage the project's schedule to mitigate these risks.
Step-by-step explanation:
The concerns that a Scrum Master should take into account when full-time commitment from an external specialist is required for upcoming work are primarily the impact on team collaboration and potential delay in the project timeline. The necessity to integrate an external specialist can disrupt existing team dynamics, hinder seamless communication, and affect the overall team productivity, which is critical for the success of any agile project. Furthermore, relying on an external resource may introduce risks to the project schedule, especially if the specialist's availability does not align with the project's critical deadlines, thereby threatening the timely delivery of the product or project.
In light of the collaboration challenge, it is essential for the Scrum Master to facilitate good communication and trust-built relationships among team members, including the external specialist. This mitigates the risk of conflict and ensures that all team members are in alignment with the project goals. Considering the possible delays, the Scrum Master must also manage the project's timeline effectively by monitoring the contribution of the external specialist and making adjustments to the workflow as necessary to maintain momentum and avoid a slip in the delivery schedule.