Welcome to your interview.
The question is on your right: Redesign Success Metrics. 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.
What metrics did you track to determine the success of your redesign on your previous product?