Second, Amazon had a problem before Andy took over. Way too many managers and incompetent people in very senior levels. The fact that he's doing something about it is a good thing for Amazon. You don't become a CEO of a behemoth such as Amazon and expect to show impact within 6 months. It takes years.
In terms of AI, they did invest in Anthropic early on and are a significant stakeholder. That's critical since Anthropic is a trillion dollar company in the making and they trump everyone in enterprise AI. They are much more likely to succeed with smart partnerships than doing their own thing.