You're missing the point. The fix was moving Takairangi away from the weaker side. Now he's been fixed altogether with a move into the pack.
But it's not the same - Takairangi and Radradra are both missing from our left side (which has become a weakness despite Jennings on that side). Moses has been defending just fine with Hayne outside him. Hayne was worn down against Manly and missed a few tackles but against Penrith he was ok.
The main point is that it's too soon to be making any calls on what has or hasn't worked, tactically, because our attitude hasn't been right. So using a couple of losses to push an agenda is just amateur hour. Arthur rebutted your bullshit in his presser today:
https://www.parraeels.com.au/news/2018/03/23/brad-arthur-talks-ahead-of-sharks-clash/