I'm not saying we should trade Pierce, but this proposal makes a lot of sense.
* Gay's a good player, and a good fit in Memphis, but the Grizz want to shed money. Pierce, at this point, is owed only $5M next season, so Memphis would get a three-month rental on a declining but still fairly productive (and playoff-tested) Hall of Famer to lead a squad that's relatively inexperienced in big-game situations. Plus they save big bucks next season.
* Lakers (thankfully) don't get Pierce, but they do get a good young player who, though not a top-tier player, could nonetheless help them transition to the post-Kobe era as a good complement to Dwight Howard's inside game.
* Celtics get a much-needed tall player who actually likes playing in the post—something else they desperately need—and wants to be in the post, and is good in the post, and is also a good passer. A KG-Gasol frontcourt would be great in terms of length, rebounding, rim protection, passing, and inside-outside scoring. Stinks to lose Pierce, but this will open things up for Jeff Green to get big, consistent minutes—and if he's the "heir apparent" to Pierce (in Danny's book), they might as well start using him more.