I think I understand...have not used other people in training, except when we worked with Max: live birds, location flags and a shooter.
I was always too close to the bird/flag and dog, hence the need to have a shooter. Also Max would grab the bird, if it refused to fly or was slow out of the gate.
Based on the amazing performance your dog displayed last fall, I can't imagine you would need any training for your new pup ...would asssume she/he would be a natural!