If I could ask Danny Ainge one question under oath, it would be "What was the final offer, really?"
My understanding has always been that the 2016 Brookyln pick was not part of the offer, but it is officially unknown. This interpretation comes from the fact that it was called "a future 1st from Brooklyn". It made it seem as if it were more distant, where as a 2016 pick would have been more accurately called "next year's first from Brooklyn" in late June 2015.
That said, I still love Justise Winslow and would trade #3 for him straight up.