A project team completed a sprint delivering two features for a fleet management system. Although the features were delivered, the sprint had several issues and conflicts that left team members upset and demotivated. What can the project manager do to improve the team's motivation and engagement?

A sprint retrospective is the most effective approach because it's a dedicated meeting for the team to inspect its process, identify what went well, what didn't, and create actionable plans for improvement. This collaborative problem-solving directly addresses the "issues and conflicts" and "upset and demotivated" team members by giving them a voice and agency in improving their work environment. Reviewing sprint planning practices might be an outcome of a retrospective, but it doesn't encompass the full scope of process and interpersonal issues. One-on-one meetings can help address individual concerns but don't facilitate team-wide learning and improvement. Reviewing sprint progress focuses on deliverables, not the underlying process or team dynamics.