My son's ACT score?

My son has a numerous amount of colleges looking at him for his athletics . I am not living in a fantasy world and realize my son is no scholar, he has been on an IEP for most of his schooling and I would be pushing it to say he was an average student, I know that not all kids are academic........but what can I do to up his chances of making a future for himself, his Act composite score was 14 and I don't know if he is capable of getting much higher then that. Please don't think I have no faith , I am just a realist...where he is lacking academically , he makes up in natural athletic ability.