Danny always loves his trading chips...passionately loves them while he has them, and is just as cold-blooded when he trades them for value.
Bradley and the picks are Danny's only real "chips" right now as he's either traded off all the others (Goddy, Erden, Walker, Giddens, etc), can't deal others right now (Baby, Green) as he's waiting for July 1, or the contracts are too big to deal right now (big three). So, of course, he's going to be talking up Bradley and the picks. That's what he does.
Oh, and I'm not saying Bradley will be traded any time soon, just that I don't think we should get too attached to him (or any other Celtics other than Paul Pierce) because Danny will trade anybody if he thinks he can improve the team by doing so.