There is no such thing as an ‘alpha’ in a wolf pack. An early study that coined the term ‘alpha wolf’ had only observed unrelated adult wolves living in captivity. In the wild, wolf packs operate more like human families: there’s no defined sense of rank, parents are in charge until kids grow up and start their own families, younger wolves don’t overthrow the ‘alpha’ to become the new leader, and social dominance fights are situational. Source Source 2
As I’ve said and will keep saying, wolf packs are families with siblings that squabble! Get with it werewolf fiction!