Coated breeds (well, really all breeds except hairless ones) undergo several coat changes between baby and adulthood.
According the the UKC standard (since I don't feel like navigating the AKC website): The breed is double coated, with soft, dense undercoat and harsh, glistening outer coat that is long, straight and held off the body by the undercoat. The hair on the head, front of legs and feet is short and thick. On the rest of the body, it is abundant, with a good neck frill, or ruff, and profuse furnishings on the back of the legs and the tail.
So while her adult coat should not be "silky" like her baby coat, it should grow in over the next few months. Probably the best investment you can make right now is to get a good pin bush, and to start teaching her that grooming is a good thing. If she can learn to lie quietly while you line brush her it will make everyone's life a LOT easier.
Also, it might be a good idea to have you vet do a skin scraping, to check for Demodectic mange. Puppies are very prone to it, simply because they have an immature immune system.
