IMO, to keep both Bo and Toewser long-term, both Girard and Manson would have to go. However, that would mean 3 of your 6 D would be lower paid/lower skilled guys, quite possibly rookies. IDK if that's ideal. Plus, a new deal for Rantanen is coming soon.
I'd love to keep both, but I think one of Toews/Bo will probably have to go, and you keep G.
It would be tricky but it can be done.
They absolutely shouldnt be spending more than $1-1.5M on bottom pairing guys.
For next year for example, assuming the cap jumps up $4M to $87.5M, Toews just gets that full raise essentially.
Then in 2025 it rises another ~$5M to $92.5M, and you trade Girard and replace him with a $1.5M Dman. That would be a combined $8.5M in cap space created. Rantanen gets $3.25M of it to sign at $12.5M Byram gets the remaining $5.25M to sign at $9M.
It can work... It just means not having really any cap space to spend on the roster anywhere else and the depth of the defense takes a hit but you keep the Top 4 in tact(Though trading Manson is probably just a benefit to the team anyway).
Of course, Landy return pretty much ensures we lose one of Bo or Toews(Probably Bo as Toews will be signed before we know either way Landy's future)
We're at the point now where the only chance they really have to continue icing good depth is if the teams drafting legitimately improves. We basically need Kovalenko to be a legit 3rd liner, and we are going to need the likes of Ritchie, Gulyayev, Behrens, Malinski, Foudy, Hanzel, to make it as legit NHL guys, probably need 3 of them in the next 2-3 years to make that jump successfully.