When the Bruins traded Hannu Toivonen to the St. Louis Blues in July of 2007, the piece they got back in return came with a couple of question marks. The uncertainty surrounding the then 21-year-old Carl Soderberg — the player the B’s received for the underachieving goalie — was warranted. Soderberg was a forward with good size, but also with questions surrounding his mental makeup, and he was coming off of an eye injury. “Here’s a player they had very high expectations for,” Bruins general manager Peter Chiarelli said at the time of the trade. “He may turn into maybe not an elite player but a very good player. There were times when he dominated the world juniors when he was playing.” Just as importantly was the fact that Soderberg may not even play in North America. The final concern came to be, as Soderberg has played his entire professional career in his native Sweden.