Shelvey was frozen out by former manager Rafa Benitez last season.
Speaking after victory over West Ham in China, he said, "I think it could be a good thing. For me personally I probably needed that change. I understand the fans are disappointed. We had three great seasons under Rafa but it wasn't to be and we've got to all move on.
"He's a lot different to Rafa. You never knew what Rafa was thinking. Personally as a player I'd rather have someone who talks to you. That's not knocking Rafa, he was a terrific manager for me personally."