This is the sort of report that Danny Ainge has been preparing for over the last couple of years. It is easy to say "no star players are available," because they legitimately don't come on the market all that often. But there are exceptions and the key to taking advantage of those market fluctuations is to have the assets to move.
Reports have been growing that the Hawks are looking to blow things up and take a step back (despite being a game back from the Celtics for the 3rd seed in the East).