Welcome to your interview.
The question is on your right: Approach to Underperforming Models. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
You've shipped a model that looked acceptable during development, but it is now underperforming when used in practice. Your team wants a structured way to diagnose the issue and decide whether the problem is data, metrics, thresholding, or the model itself.
How would you approach a problem where your model is underperforming?