Marion trade keeps Mavs' window open

It's all about prying the window open as long as you can. And with this week's moves to re-up Jason Kidd, sign Marcin Gortat to an offer sheet and acquire Shawn Marion in a four-team deal, the Mavs are doing all they can to keep it from slamming shut while Dirk Nowitzki is still an elite player.

Wednesday's complicated four-way deal with Orlando, Toronto and Memphis sends Marion to the Mavs on a five-year deal worth an estimated $39 million, and his running ability should make him a deadly complement to Kidd in transition. As part of the deal, the Mavs also get Memphis' Greg Buckner and the Raptors' Kris Humphries and Nathan Jawai. Humphries is an underrated and productive player who likely takes over Brandon Bass' role as a scoring big man off the bench.