Position changes are a skill needed in both rally and obedience. Taking the time to teach a good foundation will make the more advanced position changes much easier. In this blog, I'm working with Excel, who wasn't quite two when I videoed these sessions.
Excel is a dog who finds movement very reinforcing, and therefore, stillness is difficult. For this reason, I spend a lot of time reinforcing him for doing nothing. This helps with anticipation and also helps him keep his body quiet and still. If your dog is like Excel, reinforce for waiting for the next cue and stillness even more than you reward the movement behaviors.