This is easy.
I would ask the coach “what kind of athletic admit system does your school use”? Then, “I know some schools have a letter grade system for tips. Others have a less formal system”. Based on the answer you ask the next likely question. “Can you tell me how my son fits into that system? - as we only have 1 ED choice to make”
He will tell you the truth but it might be inside coach speak. After all, he knows this is your baby and his rep is his currency.