most def...

But here's my idea- Why the hell does naruto have whiskers? Because there is a giant fox with nine tails in his belly button. Why does Gaara have mascara and eye shadow so think that a hooker from Detroit would be like, "Honey, too much is too much"? Because he has a coke addict racoon that never lets him sleep. Why does Naruto have Blue eyes and blonde hair, because he has a ninja near his pancreas that also happens to have similar features...

They are most likely not related, and the only reason Iruka Sensei wasn't used is because he was too old and already had a ninja style. So adapting would have been difficult. Think about it: How could they keep his pappy was the best ninja konoha had ever seen, when they couldn't keep he has a demon in his belly?