Yeah, there was a ton of luck involved there. If they had been drafting first the year they drafted Durant, they most likely come away with Oden. He drafted Harden and also traded him away.
Also, with the instability of the cap, you can't count on taking back bad contracts for picks. This offseason was the first in 3 years where that was possible, and those opportunities dried up pretty quickly. Contracts are shorter than they used to be, and most teams are choosing to wait out bad contracts rather than give away picks to get rid of them.
Anyway, even if you believe he is a drafting genius, starting a rebuild with nothing but your own picks is a long term rebuild, and the odds of striking gold 3 years in a row are not good, no matter who you are.
Pure luck to have the greatest run drafting players in history? Okay.
And you think putting Harden on the market was his call? OKC simply didn't want to pay for a championship team, so they didn't amnesty Kendrick Perkins and they didn't want to pay Harden the max. That's what happened by every single account of the situation.
Presti is working circles around every GM in the league.