Is There an Expert in the House?

An expert in my masterpiece field has certain qualities that make him an expert. To be considered an expert in my masterpiece field, I think they should be able to coach me both mentally and physically and they have to have passed the test that I will be faced with. If he can coach in a way that shows results, then he is definitely an expert in my book. Also if he has passed the masterpiece test, then he should be able to mentor me through it and help me study for the test.