During a standup, a team member is publicly criticized for not completing yesterday's tasks. What should the agile coach do first?

The agile coach should first reassert the ground rules and then steer the team to today's tasks and impediments. Public criticism during a standup violates the principles of psychological safety and respect, which are crucial for team collaboration and effective agile practices. The standup's purpose is to synchronize the team on progress, plans, and impediments, not to assign blame or conduct performance reviews. Deferring the discussion by referencing the team charter is a good long-term step, but immediate action is needed to stop the harmful behavior. Allowing the conversation to continue would further damage team morale and trust. Addressing it at the next sprint retrospective is too late; the damage has already been done, and it doesn't immediately correct the inappropriate behavior.