Andrew Johns believes the Blues need to give Latrell Mitchell more opportunities with the ball.
The Rabbitohs star is yet to score a try this State of Origin series, but has still been valuable in assisting winger Brian To'o.
For Wednesday's decider, though, Johns wants NSW to feed Mitchell where possible.
"We need to play to our strengths," he said on WWOS' Immortal Behaviour.
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"If you have a look at the team, there are strengths all over the park.
"For me, you've got Angus Crichton and Latrell Mitchell on the left and Liam Martin and Stephen Crichton on the right. We have to play to them, we have to get them more quality ball, (know) where to get them the ball and when to get them the ball.
"In Perth, in horrible conditions, Latrell put three tries on for Brian To'o just with his skill.
"But when he got the ball, the defence was there (in his face). If we can get him more ball – look out."
Johns emphasised the importance of the Blues' edge attack, which comprises Mitchell, Angus Crichton, Stephen Crichton and Liam Martin.
He noted a significant drop-off in offloads between their win in Brisbane and their loss in Perth.
"You have to get him the ball in unstructured defence, and how you do that is getting offloads," Johns said.
"How do you get offloads? Your halves are up in the advantage line supporting the big boys.
"When you are attacking on the halfway line, defence out wide are not as aggressive. Wingers are able to drop back so it gives Latrell and (S. Crichton) even more time.
"The halves have to realise that it is really good to go in the line and hold up these defenders but the longer you go into the line and closer to the ruck, the less time you are giving to (the edge attack).
"The real strength of the team is in the edges. I'd just love to see them use the ball more.
"The spine can not expect their forwards to get a quick play of the ball and say 'go there'. You've got to get in and around, which creates one one-on-one tackles, quick play-the-balls and offloads.
"If NSW do that, they will get Latrell not one-on-one, but one-on-two, and he will still pull your pants down.
"We saw Angus last year in Melbourne; no one could tackle him. It is the same with (S. Crichton), then you've got the psychopath that is Liam Martin."
"When the offloads come, just throw it straight to Latrell or (S. Crichton) on the edge because the defence is all staggered. If you give Latrell little pockets ... Latrell can beat a bloke on the outside. You can't tackle him one-on-one.
"In Game I, we made 15 offloads, and in Game II, we only made five offloads."