They need to spend more time passing, tackling and Kicking than the rest of the NRL.
They can bring in a coach specialist for those core skills.
That will help, but truly they need to spend thousands more hours than other teams investing in their local players to do the basics better than anyone else.
They need to apply more pressure in opposed training and come up with some drills that replicate line speed exhaustion and pressure pressure pressure....the goal being to execute the basics while gradually lowering the percentage of times they make mistakes.
Most of all, when people commit unforced errors in a game, they need to go back to the drawing board, pop the fellow into the NSWarriors as a assistance model rather than punishment.
That would take a culture shift in the thinking of the Warriors club and their players,
That will piss Fans off, players, agents, and sometimes Ceo's alike.
That will lose them games.
Over time it will heal the playing problem.
For that approach to have any chance of success they probably need a big name coach that no one dares undermine for stripping the the whole machine down and rebuilding it.
Sadly a lesser name coach who is just as capable, doesn't have the mandate to reshape the Warriors.
They have the Ceo to fix the off field stuff.
A lot of people are talking about a full time mental skills coach. I'm sure thats important, but you have to address the fact that the majority of the competition are better at passing, kicking, tackling and holding onto the ball.
The silly decisions the players make can be worked on as they arise.