Im not dropping him for some poor performances, if anything I am almost protecting him. I like the look of Lang (little bit older and a bit more experienced).  I think the team in general would benefit from Lang/Cat as both seem more  steady at the current point in time.  Also Langs kicking seems better currently (not sure what the stats say??).  Hopefully as the team gains confidence (which I think it will) the more expansive play comes out and Smith fits in the team.  Its not a negative mark against Smith, more a case of where I think the team are.