
Hi,
Has Pippa been spayed? I'm no expert but I do know that spaying and neutering can often alter the coat. I have two boys, both neutered, 1 black and tan, 1 ruby and luckily they have both managed to keep soft coats - my ruby you would never know had been neutered but my black and tan has gone a bit thick and more difficult to keep looking tidy.
If her coat is really thick and wiry, I believe that Mars coat kings are good in keeping things under control although I have never used one - Lucy is your girl to talk to ;-)