nice pop but sadly he is a long way away from NT standard.
imagine
IS Resp
ID Resp
RB Prof
SB Resp
HD Resp
DR Av
PS Inept
same age...... and he is number 3 choice C at the moment.. keep going though - you never know, if you are only concentrating on training 1 position he could catch up.
as i said, whatever happens he will turn out to be a good player for you!