The last time Matthew Mott coached Cameron Green, the rising star of Australia's cricket ranks was a teenage quick doing his best while batting in the tail of an under-15s Australian school side.
Fast forward six-and-a-half year, and Green has all but assured he will be the next man picked in Australia's Test middle order.
It's just a matter of when.
Fittingly, as Green was pushing his Test case on Monday with 114no for Australia A against the Indians, Mott was again the man watching on from the coach's chair.
"Many years ago he was in an under-16 Australians schoolboys squad that we took away to Sri Lanka," Mott said.
"He certainly filled out a lot since then he was a big, big boy for his age but he's definitely you know grown into a man.
"From seeing him a couple years ago to seeing a completely well organised and professional player he is now it's just goes to show what hard work does."
Green still remains an outsider to play in the first Test against India in Adelaide next week, with selectors unlikely to change the middle order.
He is however seen as the answer to Australia's long search for a world-class allrounder, bowling at 145km/h while batting in the top six.
But on Monday, he showed his batting alone is almost good enough for him to be picked in national teams as Australia A went to stumps on day two at 8-286.
His century against the Indians was his fifth in 20 first-class games. He now averages 54.58 in the format.
The 21-year-old brought up his century with a brilliant cover drive off Umesh Yadav, and regularly found gaps behind square on the offside.
He wasn't afraid to use his feet, jumping down the deck to Ravichandran Ashwin and hitting his back over his head at one stage for six.
Again, it's a far cry from the teenager Mott saw in Sri Lanka in 2014.
"He's had his time out of the game with these bowling injuries so he's probably been able to do a little bit more on his batting," Mott said.
"Very nice simple technique, plays very straight.
"What stood out the most was what a great temperament he had and an appetite to score runs.
"It's just goes to show what hard work does and obviously done a great job over there in Perth, to get him into the technical spot."
