A little luck and not too bad eyesight.
First of all, it is because of their successful drafts in previous years, including Curry, Thompson and Green. The low-salary contract Curry signed due to injury is also an important reason why the Warriors can operate calmly.
The second is advanced concepts coupled with outstanding but more importantly unique players. Playing small balls, shooting three-pointers and passing the ball are based on their tactical concepts and player characteristics. There is no Curry Thompson. A three-pointer, without Green's versatility, it can't be a small ball, at least it won't be that successful.
Then there is a friendly and harmonious atmosphere. Players with a temper like Green used to be thorny players, but they are very good in the Warriors. Of course, Green's desire to win is also very good. This atmosphere is also one of the reasons why Durant was attracted and even asked to take a salary cut.
In the end, there was still a little bit of luck. They won 73 games but failed. I think this is the reason why they are so dominant now. Although they failed, they attracted Durant and made the team what it is today. A warrior who is feared by everyone. Everything has its ups and downs. Without the setback of 73 wins and defeat, Durant would not have joined.