For clarification, the iPhone 4S is a Steve Jobs product. It was finished long before he passed tragically.This was Tim Cook's first product that was 'his' and I seriously hope he is kicking a$$ and taking names a la Steve Jobs.
Tim Cook will not have his official stamp on an iPhone until after the next model is released. They have many months of lead time invested in R&D, manufacturing, FCC approvals and testing along with carrier involvement.
Don't be so quick to jump on Cook ... give this man a chance and I bet we will be pleasantly surprised at how well he does.