I wasn't referring to the card portraits, but the CF's themselves. Right now, the obtainable Larry Bird's ingame CF has short hair, but the (for now) NPC Bird present in the Master Challenge appears with his mullet ingame.
This is how Larry looks as the legend card. It's not the same CF as his younger counterpart.
It's the same with Julius Erving, where his 76ers card ingame has short hair, but on the 70's All-Stars, he rocks the afro from when he played in the ABA/early years on the Sixers.