You´re missing the point. If he´s capped at ONE position, he´s capped at ANY position. If a player reaches his potential, you cannot make him better by going to him and telling him "okay, now you reached your cap at Center, I proclaim you a PG, so you can develop". If he´s over, he´s over.
The "Position" only tells you where he maxes out in Salaray, not where he actually capped.
Zwei Dinge sind unendlich, die Dummheit und das All...