Justin Jackson helps kids kick off the school year Posted Aug 22, 2019 The Dallas Mavericks are focused on success. They want to make the postseason and contend for a title. The Mavs also take pride in doing work in their community. As has been an annual tradition, Justin Jackson and J.J. Barea took the initiative on Monday as they helped kick off the year for students from Dade Middle School in Dallas. (The Smoking Cuban)