The Pittsburgh Penguins winning streak came to an end this week with a hard-fought loss to the Boston Bruins on Tuesday night, and a sluggish, sloppy loss to the New Jersey Devils on Thursday. That really is not the major concern this week, though. Eventually a team is going to lose a couple of games in a row, especially after winning as many games as the Penguins have over the past few weeks. The season is full of peaks and valleys and at some point some close games are not going to go your way.