Resolve teammate feeling unwelcome with measurable steps

Your teammate privately reports feeling unwelcome by a subgroup on your team. Describe the exact steps you would take in the first 72 hours to assess the situation, protect psychological safety, and avoid bias. Specify how you would gather corroborating evidence without outing the reporter, what you would say in 1:1s to each side, what artifacts or metrics you would create to measure improvement over the next 60 days, and how you would document decisions. What would you do if leadership pressures you to move the reporter to another team? What if the accused subgroup denies everything and retaliatory behavior is suspected in a remote-first environment?