Villas-Boas reckons his former mentor will eventually be tempted to manage his country.
"Here was a person coming out of a completely different education. He changed the way people trained. Changed the way people spoke about the game," he said.
"I have to say at this moment, if I am sitting here it is because Jose changed the legacy of Portuguese football.
"I think he will be extremely driven to win the World Cup for his country. And when that happens, when statistically he's the best manager that has ever been then I think he will finally leave the game."