That will always be a part of our DNA," said Greenacre.
Greenacre expressed pride in aiding the player's development trajectory.
"I'm not surprised by it and it's nice to have been able to play a small part in Luke's career in terms of getting him to where he needs to go," said Greenacre.
The former striker reiterated his admiration for the young winger's capabilities.
"I want to work with the best players, I want to work with the best Kiwi talents and he was certainly one of those.
We'll watch his progress with envy," said Greenacre.
Greenacre also addressed whether the transition to English football came too early in the teenager's development.
"Only time will tell (whether the move is too early in his career).
>>> Cumbria Police Arrest 29 in Five-Day Operation Merlin Crackdown
When you know him, his self-belief and the confidence he has as a player, remembering he is still very, very young and he hasn't looked out of place in our first team environment," said Greenacre.
He praised the maturity and physical readiness of the New Zealand international.
"He's got an old head on young shoulders and I think he's physically ready for that step up," said Greenacre.
Greenacre concluded by expressing high hopes for the forward's career trajectory in England.
"The demands there will be a little bit different to the demands here but time will tell.
I think he is read for the step and I hope he takes the opportunity with both hands and if he can get a move to the Premier League from there would be amazing," said Greenacre.