They have the pieces, it would just go against everything they are building towards. I would be shocked if they traded Webby, RDLR, Bogaerts, Bradley, Vazquez, Cecchini, Barnes, or Ranaudo, and that alone keeps them from Stanton.
Now, they could offer a deal of Bogaerts, Bradley, Barnes, and Webster and that would almost certainly net you Stanton, but you've got Stanton and no future.