Isola's blog says we could probably get him if we traded Wilson Chandler.
But Fernandez doesn't play defense, and Chandler does. And Chandler is versatile, being able to play SG, SF, and PF if we need him to (not WELL, but he can). Fernandez, on the other hand, is rather one-dimensional.
I say we wait and see how good of a player Landry Fields becomes before we consider this trade. It won't be the end of the world if we don't have him, and he's not an AMAZING player - if Landry Fields turns out to be a great player, then we can trade either him or Chandler pending