Unless you want to create separate entities, dissection of blood groups does not change the shape of the organisation. Not its interaction, nor its meaning.
Ii is a view on organisations with the consequence that internal structure does not matter for the outside.
All efforts to break up an organisation in various parts (along functions, products, locations, customers) have little effect to the outside world, unless it affects the shape and the characteristics of the border.
A paradox in organisational design thinking and it highlights the question about what defines an organisation.