You're joking right? That 2015 SA side was probably the best XI SA ever put out. Peak ABD, Steyn and Morkel together
Faf, Rilee, JPD and Miller in the middle order.
Tahir manning the spin stations.
QdK and Amla opening. Granted they both had a poor tournaments but on paper and leading into WC they were an absolute freight train.
Kallis retired in 2014 from ODIs after seeing that he was no longer at Faf/Rilee level.
Smith wouldn't have displaced either of the openers they way they went from 2013-15.
Don't fall back on Philander replacing Abbott as an excuse to call the team weak. This was a class player replacing a form player. Maybe not the best choice on the day of the semi and undermining captain's decision, but it wasn't a Junaid Zia type selection.