The Blues have plenty of quality forwards. Jaden Schwartz and Brayden Schenn have earned a top three placing in the league’s player of the month honors in October and November, respectively, and Vladimir Tarasenko is Vladimir Tarasenko, a three-time All-Star who has had at least 37 goals in each of the past three seasons. Meanwhile, in the past three games, the Blues have scored four times: twice by fourth-line center Kyle Brodziak and twice by third-line center Patrik Berglund. That’s where the Blues find themselves now, a third of the way through the season. They’ve lost three in a row and had Sunday off before returning to practice Monday in preparation for a game Tuesday against the Canadiens. In the ups and downs of a long NHL season, right now counts as a down. The blip — that’s one step past a hiccup but not quite a slump — comes at an interesting time, as the Blues finally have the full complement of players they will have this season. Defenseman Jay Bouwmeester is back and has played six games, with the Blues going 2-3-1. Berglund has played three games and the Blues are 0-2-1. The team, though, was having troubles before then. The Blues had gone 2-2 in the games right before Bouwmeester’s return, and the game before that was a shootout win over lowly Arizona. In the seven games before Berglund’s return, the Blues were 4-3. Until the two get fully up to speed, it’s not out of the question that the team is figuring out to play with two of their longtime mainstays back in the lineup.