What about trading for a player? Can the Celtics then flip him in another deal?
Short answer: Yes. Longer answer: Still yes, but time is kind of running out.
Remember in the last question when we said the Celtics could combine the DPE salary amount with Morris to bring in a player who makes over $18 million in a trade? The same is true if Boston acquires the player with the DPE via trade, but with one notable difference.
When a team uses an exception (of which the DPE counts) to acquire a player via trade, that player cannot be aggregated with other players in another deal for two months. It is more commonly said that you can’t trade a player you acquired in a previous trade with other players for two months if you were over the cap when you acquired the original player. That is a slight misstatement, but close enough for almost all practical purposes.
For the Celtics, that date is right around the corner. If they use the DPE to trade for a player, and want to use that player in a subsequent trade to stack salaries together, they need to get a move on. As stated above, the NBA Trade Deadline is 2/8/18 this year, about a week or two earlier than usual. That means Boston would have to complete the first trade, using the DPE, no later than 12/8/17, in order to be able to flip that player combined with other players.
What if Boston wanted to trade for a player with the DPE and trade him again by himself?
Not an issue. You can always turn around and trade a player by himself almost immediately. We saw the Celtics do this with guys like Jameer Nelson, Brandan Wright and Austin Rivers, when Ainge went on an epic trade spree in the 2014-15 season.
For a fuller picture, if Boston went this route, they could acquire a player using the DPE and then turn around and trade that player by himself the next day for a player making just over $13 million.