Villas-Boas is on the brink of a switch that will cost Roman Abramovich £13.3m in compensation and £5m-a-year wages.
But after seeing the way he operates, Jim Fleeting is confident it's money well spent.
The SFA's Director of Football Development oversaw Villas-Boas as he earned EVERY coaching badge he's got in Largs.
Now, as he stands on the verge of taking over from Carlo Ancelotti, Fleeting admitted he's proud his hard work is now paying off.
He told the Scottish Sun: "Andre spent a lot of time with us. He did his C-Licence, B-Licence, A-licence, and Pro-Licence.
"Most people don't even need to do their C badge because they get credit for being a professional player. Everyone likes to pick up on the fact Jose Mourinho spent a bit of time here.
"We get a lot of Portuguese here and people think it's because of him. But the fact is, if you're not a professional player then you can't sit the courses over there.
"Villas-Boas started at the bottom of the ladder and completed every one of our courses. He was only 16 or 17 at the time, just a boy. It was probably harder for him than anyone else who does the courses.
"He comes from a very different culture. Most of the Portuguese guys can be quite aggressive when they get on the training park.
"They're not nasty, they just demand a lot from their players.
"That can be hard when you've got a wee 18-year-old from Drumchapel Amateurs who has come down to run about and help out!
"They've got to watch when they speak to the youngsters, so that can be something they need to work on.
"But Andres was great from the word go. He was very studious and you could see he wanted to know more and keep learning."