Staff writer Eddie Sefko held a chat recently to discuss all things Mavericks. Here are some highlights.Question: The Mavericks' starting lineup to open the 2016-17 season is ...?Sefko: Al Horford, Dirk Nowitzki, Chandler Parsons, Wesley Matthews and Mike Conley. OK, the center could be Dwight Howard or Salah Mejri. And the point guard could be Deron Williams.