He is also a former member of the Wests Tigers coaching staff, a former coach of the Under-16s New South Wales Koori side and was selected to be a part of the staff for the Indigenous All-Stars in the 2021 game.
Newcastle Knights Director of Football Peter Parr spoke on the appointment of Griffiths and believes that this is the next step in his coaching journey.
“After lengthy discussions with Ronald we decided this outcome was the best for all parties," Parr said.
“Coaching NSW Cup will be an exciting opportunity, I will relish being able to connect with the local league clubs and continue my personal development, said Griffiths.
“The Knights have afforded me the chance to be a part of a history making NRLW team, I will be forever grateful for those opportunities and the memories created.
“I would like to thank our players, supporters, sponsors and families who have been with us along this NRLW journey.”
In other coaching news at the Newcastle Knights, former NRL player and the club's current Head of Pathways Michael Dobson has been selected as the new Jersey Flegg head coach. The appointment will see him continue both roles at the Knights.