​IMAGN IMAGES via Reuters ConnectThe Boston Bruins are coming home empty-handed. The Bruins (9-4-1) dropped their second straight game in a 4-1 loss to Jim Montgomery’s St. Louis Blues (6-6-1) on Thursday night at Enterprise Center. James Hagens scored the lone Bruins goal, and Jeremy Swayman made 14 saves in the loss. The Blues’ Robert Thomas and Philip Broberg each recorded three points, and Joel Hofer made 31 stops on 32 Bruins shots. Also Read:Bruins Give Up Four Unanswered Goals in Second Straight Loss“It was definitely unacceptable tonight. Especially the first 40 minutes,” Marco Sturm said to NESN’s Andy Brickley after the game. “We got outworked in every area of the game, from top to bottom, and yeah, we didn’t deserve anything better [than what] we [got] tonight.”Hagens opened the scoring, which is something the Bruins have done in each of their last five games. However, the foot came off the gas, and the Blues took advantage of a Bruins team that looked off their game. The Blues struck on the power play, which snapped a two-game scoring drought. They only needed three seconds on the man advantage before Jimmy Snuggerud tied the game. They built on their lead five minutes into the second period, then again seven minutes later, both goals coming from unmarked players in the slot. “That’s on us. I don’t think they did anything special,” Sturm said to reporters in St. Louis. “We talked about it, so that was just a mental break on a certain individual. But overall, we just felt like it happened all night.” Connor Clifton and Mark Kastelic both followed Dylan Holloway to the front of the net on the second goal, and the Bruins got caught in a bad line change before the third goal. David Pastrnak hopped off the ice, and it took a few seconds before Matt Poitras jumped over the boards.The Blues’ fourth goal came six seconds into their third power play. They finished 2-for-3 on the power play, while the Bruins went 0-for-2. Sturm pointed to the special teams, saying they “just totally changed our momentum.” “I think this league humbles you quick when you’re not doing the right things,” Hampus Lindholm said postgame. “And we kind of saw that go to effect tonight. I think we had some moments in the game, but over 60 minutes, too many mistakes, and we got punished.” Marco Sturm moved the lines around in the third period, starting David Pastrnak with Marat Khusnutdinov and Fraser Minten before playing him alongside Morgan Geekie and Pavel Zacha. “He’s the guy who needed to crank it up the most, I would say,” Sturm said of Pastrnak. “I was trying to give him different lines, but it was not about him. I needed a spark on something, and that’s why we moved [the lines] around.” Pastrnak finished with three shots in 21:28 of ice time on Thursday.The Bruins looked more alive in the last 20 minutes of play. They outshot St. Louis 14-2 and, at 5-on-5, outattempted them 26-7, according to Natural