The Celtics were on the cusp of waiving Abdel Nader prior to August 1st, but jumped at the chance to trade him to the Oklahoma City Thunder for Rodney Purvis.
I wrote yesterday about Boston being just above the luxury tax threshold and the sensible course of trying to duck under it. This move by Danny Ainge is definitely a cost-cutting measure, in addition to having the benefit of giving Nader a chance to remain in the NBA. It is absolutely a no-brainer.
Purvis's contract is non-guaranteed, and the Celtics are expected to waive him once the trade is finalized.