I didn't initially think the Warriors needed Robson, given the resources they had in the halves, but he provided some structure in the first few games.
Unfortunately, he didn't offer enough other elements and it was inevitable a change would be made. I prefer the look of a Johnson-Tui Lolohea combination and I hope those two now get some time to develop a partnership but it requires Johnson to step up more than he has.
Lolohea had been used in the halves in training for some time, so was clearly part of coach Andrew McFadden's thinking. He might not have planned to inject Lolohea quite so early in the season so you wonder if McFadden is bowing to public pressure.
Robson would have known a change was possible but was powerless to do little about it because he just didn't step up.
But Johnson hasn't done enough of that, either. He hadn't played well all season except for one half against Newcastle (this was written before the Bulldogs game).
If you look at what defines a world-class playmaker - and I think of the likes of Andrew Johns, Brad Fittler and Darren Lockyer - it's someone who can both pull off a piece of individual brilliance and orchestrate things for their team when a game is on the line.
We have seen Johnson achieve that on an individual level for both the Warriors and Kiwis but rarely see him step up for the team when they needed him. I'm now not sure if we will ever see him do that.
Stacey Jones was a player of individual brilliance but he learned how to play for his team, how to direct them around the park.
The two most important players in any team are the halves. Hooker is also critical, and the No 9 drives the forwards for the first few plays of a set, but the halves are the ones who create and control in the last couple of plays.
Lolohea is a talented individual but is quite similar to Johnson in the way he plays. He will also be targeted by opposition sides because, as much as you train in any position, you don't really know what it's like until you're in the firing line. Johnson knows all about that.