Weren't Chicago able to trade a significant way up the draft to get McDermott. If we are say...15th, I can't imagine us not being able to trade our pick plus 2 second rounders to get to say..9th.
Chicago traded the 16th and 19th picks to move up to 11th to pick McDermott. The Celtics aren't going to jump from 15th to 9th for just a couple second rounders.
They also sent Anthony Randolph and a future second pick. So pick 16th, 19th, future second and Anthony Randolph for 11th pick. Thats a fair amount to move up 5 spots.