The Dallas Mavericks were swept out of the playoffs by the Oklahoma City Thunder.While this is not the type of title defense they were likely envisioning at the start of the season, it should have been expected after Mark Cuban sacrificed much of the roster to clear maximum cap space for this offseason. Dirk Nowitzki is still in Dallas and playing at a high level, and the Mavericks have money to spend this off-season to retool for another deep playoff run. Here are five things the...