Jalen Williams has agreed to a 5-year maximum rookie contract extension that could reach $287 million. This was expected and the Thunder managed to keep one of the key pieces that helped them win the championship. The salary cap will soon become an issue for them. They knew they wouldn't be able to keep this championship roster together for long. Some players will leave and they'll rely on the development of newly drafted players. The Thunder can contend for the championship again next season, but it will be harder after that. Considering that we've been seeing different finalists every year, that trend could easily continue next season too.