Not really. I have 25 dogs who live as a pack. They have a pecking order, but it's not set in stone, expect for the alpha male. He never has to defend his position. He just is the alpha. I have to agree with Twisterdog, Alpha dogs are born. Muskwa was an alpha male before his eyes were fully open! The lower ranking dogs change their positions on an almost daily basis.

I do not reinforce Muskwa as the boss dog. I don't feed him first; I don't care who goes in first; they sleep on the bed and get on the furniture; I let them out in front of me; I step over instead of making them move. As the keeper of all good things--walks, truck rides, sled runs, food, ect, I automatically have great power. I am the alpha female and they all know it--they may test it from time to time, but they know!

Dominance theory doesn't even really apply to wolves, at least not the way it is most commonly interpreted. A wolf who has to be forced to submit by higher ranking pack members is dead. No wolf ever alpha rolled another wolf unless he meant to inflict injury! Wolves submit to their alphas voluntarily. Dominance is not aggression. It makes their lives easier and the pack functions better. It takes too much energy and the risks are too high for wolves to waste their time fighting with each other. Their efforts are better spent on things that help them survive, like hunting.