That shouldn't be happening, though. The SA(SR)07 assessment requires candidates to demonstrate a practical ability and theoretical knowledge of coaching techniques. The rules regarding minimum qualifications of range staff mean that new firers should have enough qualified people around to allow them to reach a basic standard.
Our wing shoots have turned into a "sausage factory" during recent years, with the focus on maximum number of firers. The new live firing practices have certainly slowed down the details, but the overall feedback from the cadets seems to be positive.
For example, under the old system, coaches would make adjustments to the sights for the cadets, and time constraints meant that there was little time to explain what was going on. Now, they have to be able to adjust their own sights. Most of the cadets on the shoot had learned how to do it on their initial training, but never got a chance to have a go themselves. I was chatting to some cadets at the end of the day, and they all said they'd enjoyed that aspect of the day.