Blazers possibly trading up for Kemba Walker?

One rumor I have been hearing is that Portland may look to package Andre Miller and their number #21 pick to try to land Kemba Walker. I think that would be a solid move, however I don't believe it is likely to happen. In any case, I believe Portland is in a solid position because at #21, someone like Darius Morris, Marshon Brooks, or Shelvin Mack could fall into their lap and either of those players would be a solid pick up.