As I've speculated, this has the potential to be a big move by Ainge, particularly if he pans out. It means that we'll have plenty of expendable guards next summer, some who can be used in a sign-and-trade with the assumption that a free-agent wants to play in Boston (I've speculated Al Jefferson and Josh Smith coming to mind).
Very quietly Ainge has been building a portfolio full of young assets, and talented ones at that.