Lujan for Stewart

I'm not quite sure why Los Rangers are trading any arms (young buck Johnny Lujan) for a back up player (24 year-old squatter Chris Stewart) at a position where there will be plenty of options when spring training roster cuts are made. I'm excited about seeing Laird get significant playing time and I don't see any reason why Miguel Ojeda or Guillermo Quiroz can't fill in occasionally. If Drew Meyer doesn't clear waivers and we lose him, then this deal seems unnecessarily risky.