Danny Ainge missed that option this Summer by not doing his due diligence. Rondo or Garnett could have netted us Harden I'm sure. Westbrook coulda move to SG & OKC would still cut the nets down at the end of the year. I actually thinking how Boston coulda got Harden yesterday if Danny had explored OKC's thinking.
OKC has Westbrook, why would they trade for Rondo? Furthermore Harden was traded for financial reasons, Rondo doesn't really fix that for them long term.
KG was a FA so he couldn't be traded.