Last night the Kiwis were held to an 18-18 draw with Scotland. Johnson was suprisingly given the man of the match award.
Johns said that Johnson has not been at his best in the Four Nations.
“Shaun’s kicking game, all series it’s been really poor,” he said.
“I watched (the) last game against the Australians. A few times he ran the ball on the last, kicked it into the grandstand.
“His game management has been really poor and that needs to improve.”
Johns believes the Kiwi needs to move from the number 7 jumper to number 6.
“I was talking to a couple of really good judges the last couple of weeks and they all say Shaun Johnson‘s a five-eighth, not a halfback,” Johns said.
“He doesn’t manage the game well enough and it doesn’t suit his game and I think I’ve got to agree with them.
“If he plays five eighth it lets him rove around and play with that freedom. I just don’t think the game management for Shaun suits his style of play.”
Johns also blasted New Zealand’s performance against Scotland.
“Their attitude just stunk,” Johns said.
“I think their attitude was awful. They just thought they’d turn up and win the game.
“And well done to Scotland they played really well and they played with a lot of spirit.”