Severson would be a great add, but then you begin to run the same problem you have with Larsson. If Bouchard succeeds, and Bear continues to show great talent, then what do you do with Severson? Bear is a way better player at this point, Bouchard is tracking to be a way better player. Do you put Severson on the 3rd pairing at 4m? Nah. If Bouchard plays well in the next games leading to the TDL, you have the luxury of moving on from Larsson and acquiring a piece that is needed more.
Bringing in Severson would be a step sideways. Adding salary for a guy who might not be needed for more than a third pairing role as soon as 10 games from now's time.
As our roster stands right now, I'd be open to adding a true #1/2 guy who will push Bear or Nurse down the lineup. Someone like a Doughty etc who you would be blessed to have no matter what. Then you have a nice problem in having to move a D man out. Severson isn't worth it. We need to be playing cheap options on our 3rd pair no matter what. Jones and Benning do that for us right now.
Like I've said for 2 weeks now, I've known that Bouchard would be getting a solid look to see what they have going into the TDL. He isn't up because of Klefbom's injury. Lagesson was going down for Bouch if Klef stayed healthy.