Smith was supposed to be a potential #2 but he's been only decent this year when not injured. 1 point in 18 games wouldn't be so bad if he was shutting guys down hard and throwing big hits, but he's gotta pick it up a bit and take some of that heat off of Kronwall.
Smith has the upside of Kronwall, maybe a little better. Kronwall is a #2 guy on a Cup team. That said Smith was not, or should not have been, expected to be a #2 guy this year and probably not even next year.