The Golden State Warriors have a good line up now and there's no need to change or trade. They swept the NBA finals with the current roster that they have, so I don't think there's a reason for them to change it. Let the other teams trade or change their line up to match the current roster of GSW. Those 3 that you mentioned are there first before KD and when won the 2015 Finals championship.
Management have different views compare to ours. If you have enough space and have chances to acquire another big role player, you can market a potential player anytime.
Pointing to Anthony Davis rumor, let's just be clear that if the rumor is true it will not happened this season because AD is under contract and even he will opt-out his contract early, he will just be available on 2020, so yes on the next following season. And there are lots of happening around that year in GSW as Thompson and Green will hit free agency next season and the other season respectively so it means, some cap space can be changed on the way because we don't know how much contract will Thompson and Green will take. Take note also that Kevin Durant, now that he gained 2 Finals MVP will continue to be generous and accept a salary that is below to what he should earning.
That is just my own view and people here can free to comment about this.
Yes, this guys have different way of thinking.
They want money flowing and they want players who can fill up the seats of their homecourt.
No, not Anthony Davis. Let him be there and they just need a wingman for Rondo.
As Durant says, he still wants competition with the Game. If this superstars will go to their team it will not be as good as it is. It wont be a happy championship anymore. But he will still stay with GSW.
Management dont care about the chemistry this players make. It must be an inviting team as always to the crowd.