Carroll struck twice for the Toon in their thumping of Cardiff City on Friday.
"Potentially, he is number nine material. He's a player who leads the line," said Hughton.
"In some ways, he's an old-fashioned centre-forward who has a prowess in the air, but he's still developing his game and he has to continue to do that.
"He has good football skills for a big man, but what he has to add to his game is goals, and he was able to do that."