Your question is Measure Post-Deployment Model Success. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You've shipped a model and it is now being used in a live product workflow. The team wants a clear way to judge whether the model is actually successful after deployment, not just whether it looked good offline.
How would you measure the success of a model after deployment?