There is not such a thing as "too low".
Let's say that you are the NT in France (or other country, it doesn't matter) and a BB makes you an offer.
You can use for the next game a player that is OD=1 and level 25 in all other skills. And, if you accept, he will play as PG both offense and defense. (the other team don't know anything)
Would you accept the offer?
I would.
And you say "But he is a OD=1. He can't defend as a PG"
I know, but I would take the offer. And I would win the game.