According to a recent report, the Golden State Warriors are open to a sign-and-trade scenario with Kevin Durant. KD has spent three successful seasons with the Dubs, but this could have been his last.
Durant is in a position to become a free agent this summer. While Golden State remains the best option for him basketball-wise, KD could still come to the decision to leave. If he does, the Dubs would be left with nothing for his services.
Furthermore, there is the possibility that Durant never returns to his former self after his Achilles rupture. This could leave the Warriors in a sticky situation if they sign Durant long term and end up not enjoying his production anymore.