Anyone have a BJJ (or other kind) of instructor that has great credentials i.e. black belt, past top competitor, but doesn't teach well? I have a professor that is top notch in knowledge and credentials. He is very good at BJJ, but does not teach well in my opinion. He shows some techniques and then has everyone roll. He never gives feedback or shows the key basics. When a good blue or purple belt is training with me I learn more, see where my mistakes are made, and get key basics that would have been nice from the start.