You came because something about life with your dog is harder than you hoped, and you want to know whether the person behind this actually understands that.
So here is what I believe, and everything I do comes from it.
Most of what gets called bad behaviour is an instinct with nowhere to go. Your dog is not being difficult. They are being a dog, in a house, with nothing to do. Give that instinct a proper outlet and a huge amount of what you are struggling with quietly stops being a problem.
It was never about more obedience and stricter training.