Glad they're expanding the cast, but Shaw doesn't really add anything in terms of character to the show.
Emotionally detached, burned by the agency they worked for, extremely capable physically. Who am I talking about? Shaw or Reese?
But they needed another body(or more than one) for their various missions and for more interesting dialogue(Reese and Finch can only have so many conversations). So I'll take what I can get.