Guessing here but some superstars not rumored to go to C's at deadline but possible trade scenarios to me.
Melo, Knicks are said to want to keep the rebuild going. I believe NYK wanted to clear the slate if dealing Melo and wanted Affalo off the books. This is where Cavs come in, they get Williams and Affalo using Hayward exemption and Mozgov but pulled out. Cavs instead got Frye from Magic. Nets pick, Smart, and Lee could get it done for Melo in the above three team trade.
Harden is very sneaky. If it was Nets pick with IT, and AB dealt that is a fair deal for Rockets. And before you scream you can't trade IT and AB that is the team, think you have Smart, Harden, Crowder, and $ for two max contracts in off season! You do that deal. I believe Rockets wanted to move Lawson before bringing in IT and AB. Rockets found no takers.
Hayward and Favors in the words of Crowder together they are a superstar. It's a package of a lot of prospects and picks moving so likely needed a third team to swap players with as well but if just two teams would be
http://espn.go.com/nba/tradeMachine?tradeId=gpcx46m of course all 2016 1st and Nets 2018 also go to Jazz.
Marc Gasol for Nets pick, Sully, Lee, Dallas pick, and Rozier. It's pretty clear Grizzlies were sellers at the deadline. However in this three team trade scenario Lee goes to Portland with the Dallas pick. So Grizzlies get Sully, Rozier, Nets pick and a trade exemption. Portland backed out as they took Varjaeo deal.