This is a convoluted rumor, but I think it is about right for Green. Up and comer is not a blue chip prospect. It might be someone on the level of Olynyk. A player with some potential, but more likely projects as a role player, plus a (likely late) first round pick.
I know it is in vogue to hate Jeff Green right now, but he is still a productive, versatile wing, who would have a lot of value to many teams.