14 years when? 14 years from the beginning of the series? 14 years since the final fight with Sarutobi? 14 years after the time skip?
Because at the start of the series the Kyuubi incident happened 12 years ago. At the fight with Sarutobi it was 13 years ago. And after the time skip it would've been 15 years ago, almost 16.
I do think Orochimaru left before the Kyuubi arrived, but I don't have the facts to back it up. And I think what Kai was bringing up is that the argument and logic you guy's been using are flawed to make the the assumed timeline factual.