Just to remind everyone, the deal was:
The important thing for the Magic was that they worked Hedo Turkoglu's deal into this one as a sign and trade. The Magic received a large trade exception (around $6.8MM) in the deal.
This is the kind of framework that the big free agent and trade deals this offseason could take. For example, one or two teams (like the Pistons and Wolves) might want to take on long-term salaried players, while a third team (like Philly or other teams in cap purgatory) might want to take back expiring deals for one of their long-term contracts. One of the involved teams, or a fourth team, could work its way in to garner a trade exception for its outgoing free agent.
Al Jefferson to Detroit, Tayshaun Prince to Philly, and Andre Iguodala to Minnesota makes a bunch of sense (and may be more likely to happen mid-season if the pieces remain in place and Philly falls off).
Another consequence of the Vince Carter deal is Orlando's large trade exception. The Magic are exploring options to bring in a power forward who can play with his back to the basket, and you have to believe Al Jefferson is somewhere on their list. Orlando can mostly match salaries with its exception. In a one-on-one deal, they could include Brandon Bass, Marcin Gortat, or J.J. Redick in a sign-and-trade. A team looking to shed salary would be an ideal third wheel in this trade, since the Wolves can absorb salary under the cap.
For example, the Magic could swap their exception, plus Brandon Bass, for basically any player in the $4MM to $11MM annual range on a cap-strapped team that the Wolves want. Most of these teams would kill for the instant $7MM of savings. Then the Wolves could deal Jefferson plus Webster or Brewer (both of whom make sense for a Magic team that will probably lose Matt Barnes) for Gortat plus the acquired player. I think the salaries on this would even work for Iguodala + Gortat, though there might have to be a filler player involved.