We learned a few things about the Canadiens on their two-day road trip to Pittsburgh and Boston. For starters, they proved they are competitive with their two main rivals in the Eastern Conference. In Pittsburgh, they stifled the highest-scoring team in the NHL and lost a game they should have won because they gave Sidney Crosby a chance to score the game’s lone goal. In Boston, they won a game they should have lost because Montreal showed character and resiliency to come from behind and win 6-5 in a shootout. The games couldn’t have been more different. The Canadiens defence was razor-sharp in Pittsburgh but the game in Boston had coach Michel Therrien shaking his head and saying: “The defence has to be better.” Part of the problem in Boston was that the Canadiens played most of the game with five defenceman. In the two games on the road, Therrien elected to limit rookie Jarred Tinordi’s ice time and the result was a bigger burden on the other defencemen.