In a perfect world a lot of this makes sense, but you're forgetting about/ignoring the expansion draft.
One of McQuaid/Miller will be claimed by Vegas I'd guess. And they need Hayes, Nash, Khudobin to meet the exposure requirements. There's a reason Nash and Khudobin got two year deals. Admittedly, when thinking of how to fix the team, I was forgetting this earlier as well.
Hayes, Khudobin, Nash and one of McQuaid/KMiller if they are both still here post expansion draft should be waived/traded immediately.
I'm done with Acciari though. Definition of JAG.
EDIT: Looks like Pia8988 beat me to it.
Though I do have a question, maybe Dom or some of our other CBA knowledgeable posters can answer it. If the Bruins waive someone like Hayes, and he isn't claimed, can they still expose him to Vegas? I'd assume yes?
Oh I didn't forget the expansion draft, but I sure as heck ignored it.
Because sometimes I wonder if Hayes and Khudobin are still here solely because of it.
And as much as the expansion draft is a concern, this team shouldn't be carrying dead weight throughout this season on it's NHL roster to satisfy it.
And my suggestion is solely to improve the team today, doesn't even consider how the roster will look post-expansion.
So there is a risk by waiving these guys some of them get claimed. And with in particular Khudobin, the risk I think is very real. They don't need Kevan Miller for the expansion draft requirements (McQuaid alone satisfies those). I can't see any team claiming Nash or Hayes off waivers.
To answer your CBA question, if they clear waivers and are assigned to Providence they still satisfy the expansion requirements for the Bruins.
Also keep in mind that if Tim Schaller can 19 more games in and gets extended one-year (shouldn't be hard to do) he also satisfies the requirements, freeing up one of Nash or Hayes to be moved.
So to me the only real risk here is Khudobin. And I think if they extend Subban for one-year, he can satisfy the requirements for the exposed goaltender, and given the way he's developed, that's no risk at all. (If LV claimed Subban I wouldn't even flinch).
So to me, worst-case, both Nash and Hayes get claimed off waivers and now the Bruins need to find another forward to meet the requirements. And as I said earlier, I can't see one of them getting claimed, let alone 2.