They can't keep up with everything 100%. Stannis is definitely the wrong cast but there are almost 40 people who are not really the core but definitely with roles in the book. They are doing as best job as they can so I can't bash them too much. I am more pissed how the burning barn escape by Arya, et al, was completely redone and not in the series. There are other parts but hey, what can you do. It's still fantastic.