he only needs PA that's hard to train for tall players
no. taller players train faster than small ones.
from the training speed analysis:
6'0'' --> 0.66 per training
6'6'' --> 0.70 per training
7'0'' --> 0.74 per training
7'6'' --> 0.77 per training
for 18 year old trainee, single position
JS 11 JR 7
OD 18 HA 11
DR 14 PA 9
IS 18 ID 7
RB 15 SB 5
ID 7 will be hard to keep it that low. OD and RB both train ID. If you really want to try this build you have to start with ID 1. Than there is a possibility that ID will stop at 7. But I would bet on it. 2,5 ups in OD go with 1 up in ID. And you will need at least 11 ups in OD.
As an example: ID 10 wil take a lot of cap space away. You would have to go with IS 16 or RB 13 instead.