The Dallas Mavericks didn't take long to settle on a plan to fill a big void created by a season-ending injury to center Dwight Powell. The Mavericks are set to acquire Willie Cauley-Stein from the Golden State Warriors for a second-round pick in this year's draft, three people with knowledge of the deal told The Associated Press. Two of the people said Dallas intends to make room for Cauley-Stein on the roster by waiving Justin Patton, acquired in a separate trade with Oklahoma City.