He has put up 17 points in the past 2 seasons and suffered injuries in Boston and Toronto unfortunately. It seems like he would benefit from moving him to a team that isn't trying to compete, and serving as a mentor.
Smith spent the majority of his NHL career in Nashville and was a consistent contributor. Move him for assets, despite Don Sweeney's mismanagement if you can get a future and relieve another $3.1 Million, you can secure Krejci, Zacha, and Bergeron for at least 1 year.