Blair Betts, Oskars Bartulis, Matt Walker placed on waivers

We'll have more on this in a bit, but Blair Betts has been placed on waivers by the Philadelphia Flyers. Perhaps the best value on the roster at a $700,000 cap hit for what he does, he's now likely gone to another NHL team. Help explain this to me. Please. 

Also on waivers today, and not all that surprising: defensemen Oskars Bartulis and Matt Walker. So Andreas Lilja makes the team as the sixth defenseman, and it looks like they aren't carrying a seventh defenseman. Or maybe Erik Gustafsson just made the team. 

More to come in a bit.