In the canine world there are no unstable leaders. In the animal
kingdom, humans are the only species that retain, respect and amazingly follow unstable leaders.
The pack dynamic is not unlike that of the nuclear family, where the parents, i.e. mom and dad, take pack leader roles; Establishing dinner schedules and the rules and consequences of certain behaviors within the family unit. (With canines consequences need to be in the moment. Dogs don't hold grudges.)
As a Pack Leader, you supply the exercise through walks and play-time. You supply the food /sustenance and you also supply the affection. Affection is best when given to an animal that is in the proper state of mind. (Relaxed, quiet and behaving as you desire.)
The human Alpha must always display a calm, assertive demeanor. Without these attributes, the animal perceives you as weak and not trustworthy. This puts Fido in awkward predicament, a member of an unbalanced pack that does not have a leader. Fido then does his/her best to step up and fill that role, but then becomes burdened with the responsibility of being dominant in a human world. This role is an unfair, unrealistic expectation of our canine companions.
A canine forced into this role often turns into a dangerous dog. This can also lead to other unwanted behaviors including; Anxiety, aggression and various obsessive/compulsive disorders.