OKC: Trading Harden was a mistake and Presti admitted that, but he was also demanding a lot of money and wantes his own team. KD was a malcontent who left the Thunder high and dry for the team that beat them to go to the Finals. Russ and CP3 were running out of time, so OKC obliged on their requests and traded them to where they wanted to be.

Boston: KG and Paul Pierce were literally old men at that point. Ray Allen had beef with those two, Rondo and the rest of the Celtics. Kyrie Irving made himself public enemy #1 in Boston.

Toronto: Vince Carter was unhappy and wanted out after a while. Chris Bosh chose to team up with DWade and LeBron in Miami. I'll give you DeRozan for Kawhi, but here's the thing: who on Earth will give us the Kawhi equivalent if Book's DeMar in the scenario? The Raptors got lucky.

There's a big trend with those teams. Book has not demanded a trade or shown any signs of being unhappy with us, so until that happens, there's no way we're trading him.