While the entire team is to blame for last night, I feel that if we really wanted to look into the Warriors losing, it's Draymond Green and Steve Kerr
Draymond fouled too much and it bit him in the a** in the long run. Had he not been an idiot about kicking people in their respected "daddy areas", Warriors win this in 5. Luckily he understands that now that he's lost during the Finals, which is why they'll definitely be back in at least the WCF, in my opinion.
Kerr was too laid back and needed to instil more discipline. He had AMPLE opportunities to sit his starters and be more than 100% for the playoffs. Unfortunately, he insisted the players decide that and the players wanted to give up fresh legs for a record that's meaningless unless you cap it off with a ring. Call the shots Kerr. All of them.