I think the Bulls offer completely hinges on how Minny feels about Mirotic. Is Chicago willing to deal him, does Minny value him as highly as the #6 pick, and can Minny convince Mirotic to come over to the NBA.
Sure, I agree that a deal which nets Minny Mirotic, Butler, 2 1sts and salary filler is possibly better than the C's would be willing to offer. Just not sure Chicago would actually make such an offer.
I still think the C's could trump such an offer, with the Brooklyn picks, but I highly doubt Ainge will part with those. Maybe he gives up #6, #17 and one Brooklyn pick, but that seems like an overpay. Ainge doesn't make those type of deals generally.
I still think this is just Flip trying to milk Ainge for as much as he can get. I doubt Ainge bites though.