Bruins should feel comfortable about this and so would McAvoy and Carlo. Unless of course a whole new scenario is breaking for RFA's.
But considering Werenski and Propovov could find deals it's highly unlikely. It only benefits the trio of Vaakanainen, Lauzon and Zboril which isn't too bad.
If Chara, Moore, Miller and even Grzelcyk is out and McAvoy and Carlo waits,
the Bruins could ice five rookies in the early exhibition games. Only Krug's a veteran. Clifton, Lauzon, Vaakanainen, Zboril oh yes Kampfer of course but still. Never experienced that before I think