My previous coach was somewhere in the top 200 at some point. He wasn't very good at teaching tennis... My current one is a long term career tennis teacher with

My previous coach was somewhere in the top 200 at some point. He wasn't very good at teaching tennis... My current one is a long term career tennis teacher with a much lower ranking, but he's very good at teaching. Being good yourself doesn't add much to your teaching skills. But it does help marketing a bit if you're targeting an audience that wants to become pro themselves.