Responded to this tangentially above, but why are you assuming Durant is going to leave? I don't see it. I see him and Klay (who's rumored to be willing to take a pay cut) working together to keep that club together.
My point about starting was more about positions than anything. Nobody on the planet is starting over Durant, except LeBron if you had to. Nobody on the Celtics could start over Green, because as you say, he's unique. Jaylen is not starting over Klay, even though you clearly like him. He's not remotely the shooter, he's not a better defender at this point.
The controversial statement is that idk if Kyrie would start! You really gonna put him in over Curry? I wouldn't. And he doesn't add what Klay adds at the two.
Again, my point was about mixture and fit of players.
Big Al is the one guy who would start at one of the post positions.
jmo