The Hawks and Mavericks, league sources say, have found no common ground to date on their discussions about the veterans that would be involved in a deal to potentially swap first-round picks Thursday. Atlanta wants John Collins attached to its No. 15 pick in exchange for Dallas’ No. 10 selection and Dāvis Bertāns, as first reported by Yahoo! Sports’ Jake Fischer. Dallas wants Trae Young favorite Clint Capela swapped in for Collins to import Capela for the clear upgrade at center that the Mavericks seek this offseason.