Do keep in mind that in addition to learning how to "stack" and hold that position with the head upright, the dog also has to do several other things.

It must learn ot pay attention to a handler, it must learn to stay/hold a position, to gait properly on leash, and to allow touching/handling/showing the bite by a stranger.

Yes, dogs with a not so correct temperament can be trained to be a show dog, but it's EASY for the ones who DO have correct temperament.

A responsible breeder will be trying to breed dogs who are close to the breed standard in appearance, who have correct temperament for the breed.

Training and working your dog in other venues can help breeders determine which dogs do have correct temperament and/or working ability so tha tthey can keep these dogs in their breeding program.

Great topic, wolf soul.