I heard Kyle Body discuss this matter on DL’s podcast. I am sure he was thinking more about coaching at the college and pro levels, but he said that if you want to set yourself apart from the crowd, learn three things: 1) how to throw BP 2) SQL (I’m sure Python or R would work too) 3) speak Spanish. If he can help players translate and understand analytics, and how they can take advantage of them, he will have a very long and successful career.