Clicker training and positive reinforcement are my way to go and I think I have a proper understanding of these principles.
However, it is very rare to see tutorials, videos or live training with two people, one being the "trainer", the other one being the "assistant".
So for example, would we benefit from that while training for sit/down/up/etc. at a distance?
I can imagine letting my dog sniff around while someone keeps him on a loose leash, then I call his name, get his attention and ask him to sit. My dog will most probably come towards me before sitting. Then having someone next to him to prevent him from doing so could be a nice help. I would do that with a dog that already good training with sit/stay at a distance, so that the assistant would just need some gentle leash pressure to stop the dog and wait until he sits.
Does anyone have experience with that? Could it be a real plus or do you have argument why this is a better way?