I think the Edinburgh Zoo needs to seriously review its collection plan and not species management by just walking along. It needs a long term vision plan and I seriously do not know what that is in the case of EZ?!!!
I could see a transformation to a focal zoo more temperate / colder climate species (Snow monkey, Snow leopard) and a focus on tropical Africa and Asia. Maybe a smaller Andean/Patagonian South America focus. Also, the specialisation on primates (African colobines, mangabey, L'hoest or owl-faced and Diana or DeBrazza monkeys...!!!