When it comes to dog training it's more training the owner then the dog. Because once you remove the primary influence which is us then the dog aka canis lupus familiaris turns back to its ways. Also if you don't do it and do it correctly in the early stages issues will arise so that really means use it or lose it seriously ! The majority of the clients I teach suffer from the same issue, "My dog won't listen to me!" My response is...
"Your dog is listening to you, your dog doesn't understand you." So once the owner understand how to speak to their dog mission complete. Now the issue is every dog speaks the same language but in a different dialect and you have to listen with your eyes to hear it. Contact me for details