In general, a deadline change with Odom would be the hinge that does some big things all at once for the Dallas Mavericks ...
a) it allows the Mavs to make huge roster-shaping decisions after D-Will decides, rather than before
b) it turns Odom from a liability and a hassle into a MAJOR trade asset, and
c) it creates an opening to ADD to the current assets in free agency (operating over cap) rather than in essence SWAPPING one set of useful players for another set that is hopefully better (operating under cap).
In the total scheme of things, not having to do that under cap "start over" is a tremendous jump forward in the ability to quickly be elite again. And therefore, in that sense, it can be almost as important to Dallas' roster reload as any "big fish'' being chased.