Horwill has been coming into form in the latter part of the season and he offers a lot in the second row. He can run the line out and play either side. Carter really was shown up for his body positioning and he just didn't have the defensive punch that won him a man of the match award against France on debut. The Saffas are the kings of holding up mauls for turnovers and they will be all over him.
I liked the idea of starting Skelton and replacing him when he was slowing up as was done against France. He had a huge impact in that test. We probably will not see it but this would be my side assuming all are fit.
Slipper
TPN
Kepu
Horwill
Skelton
Fardy
Hooper
Higgers
Phipps
Foley
Horne
To'omua
Kuridrani
AAC (Adam Ashley-Cooper)
Folau
Sio/Robinson
Alexander
Hansen
Simmons
Palu
White
Beale
Betham/Tomane
Close to what I'd like to see also. Like you, I think Horwill is the natural replacement for Simmons as he can call the lineouts and has a lot more effective impact around the ground. I can go along with giving Skelton a start against the Saffas to see how he goes but I wasn't at all impressed with his efforts against the ABs. But if he's not up to scratch, where do we go? I really think Simmons has had all the chances he and another two locks deserve and he just doesn't cut it at test level. Carter is similar atm but could improve with more time and experience. So I'd persevere with him in favour of Simmons for the time being. If any of them continue to perform below par, I think both Jones and Neville have to be given their opportunities. Maybe even Wykes who was very effective for the Force this year.
6 and 8 are also dicey. Palu allegedly made the most tackles last game but tbh I got the impression watching the game live that he was pretty invisible. Certainly saw him miss one or two attempted big hits but otherwise can't say that I noticed him much. But he has had a good year beforehand and probably deserves to retain his spot for at least this game. Higgers did show a lot more when he came on late.
In the backline, Beale must drop to the bench. I can accept Phipps starting for White but we should remember that he has often disappointed when given more time in the past. It's a bit different coming on against tired opposition with 10-15 minutes to go to starting. But we shall see.
Foley to 10, Kuridrani to 13 and AAC (Adam Ashley-Cooper) to wing. The bench spot for a winger is difficult. Betham was really awful in the second half of the NRC game. Still might be the only option at this time, but I wouldn't be avaerse to seeing either Uni wingers given a go despite their youth and lack of Super rugby experience. At least they are out and out wingers with lots of pace. Off the bench could be just the go for one of them.