I'd hope we give our youngsters access to a few different halves who've excelled. Not every half will respond to the same coaching style because they've got different playing styles. I think a part of the issue with inadequate halves supply in the game is that for years it appears most teams tended to bring in Andrew Johns. Not denying he had talent (personal opinion was he was good but over-rated to an extent), but his skillset mightn't suit every player.
I'd say confidently that a half with pace and footwork might benefit more from someone like Thurston or Johnston who would approach the line differently hoping to create gaps by making the defence commit to them. I've seen snippets of what John's coaches, he seems to teach telegraphing moves that you don't plan on making. Eg get the defence thinking the centre or winger is getting the ball but turn it in for a prop who has a more scattered defensive line to take on.
At the end of the day I'd hope it meant our staff could identify what works for different players and find ways to tailor training individually.