The dog is a reflection of your energy, of your behavior. You have to ask, 'What am I doing?' That's the right question to ask.
The dog can only become what's in your bubble. The dog is imitating the energy that is in your bubble. You are the source, the feast of energy. If you feel anxious, the dog becomes anxious with you. If you become nervous, the dog wakes up nervous with you.
Bill Gates can't control a high-level-energy dog, because his energy is very low, very calm. Very intellectual. A dog doesn't see that as leadership.
When looking to adopt a new dog, the most important thing to consider is always the energy of the dog and how the dog will fit in with your lifestyle and your family.
Breed is among the least important things about a dog. It's more important to find a dog with compatible energy and needs that will fit into your lifestyle.