During a project's last iteration, an agile team struggled with a feature's delivery due to the lack of a required skill. The project has already incurred a five-day delay. A further delay of at least 10 days is anticipated. What should the agile project leader have done to avoid this situation?

During the daily standup meeting, a team member states that an issue has been encountered.
This leads to the team members getting into a problem-solving discussion.
How should the ScrumMaster respond?

An agile team is working on a new product. To ensure that all unknown issues are clarified before committing to the scope, the team plans to work only on spike user stories for the next three sprints.
What should the agile coach do in this situation?

What estimation technique is an agile team using when collectively estimating the relative size of its stories using story points?

For a Retrospective meeting, the seating arrangement should be such that there is enough space for people to move comfortably. Which of the following is a preferable seating arrangement for a retrospective meeting?