
That is what I thought when i first started, that there should be a very specific blueprint.
I have now come to rrealise that it is actually much healthier to have a variety in acceptable limits in type/style of dogs.
When one type starts to dominate within a breed (say a sire that everyone admired was overused) then it leads to exageration and the whole look of a breed can change.
My own breed is a breed of moderation.
It is also required to be shortcoupled and cobby. When trying to achieve this it can easily happen that you end up with stuffy dogs that are rather squat, with short loin, but short rib also.
If there were not others who selected dogs for length of neck and leg, and perhaps forgave a little length of back, there would be nowhere to go to regain balance, and the opposite would be true with the rangy types needing the cobbier ones input to get the correct type.