Trade talks can be so demeaning to players when it's held outwardly. It's like they're being treated as a used car, or set of golf clubs. Especially if the player is as high profile, and talented as Lillard.
Isn't Phil Beckner working with the 76ers now? If so, he's someone who would know exactly what Lillard is like, on and off the court. They go way back. Beckner helped develop Lillard's game. He might be the whole reason they're talking getting him in Philadelphia. Beckner knows good talent when he sees it, and knows how to coach the best out of a player.
It also might be a carrot for Lillard, who may well think the tie with him and Phil is worth continuing.
Just a thought here. Sometimes it's what's under the surface that causes what plays out on top.