We honestly have too many talented d-men in the system given that there are only six lineup spots available. Gotta figure they trade at least two (if not three) of Gavrikov, Peeke, Boqvist, Ceulemans, Svozil and Richard.
I think the long-term top four is:
Werenski - Jiricek
Mateychuk - one of Gavrikov/Ceulemans
That's so stacked that they could, in theory, treat both of those pairings as #1s and have a third pair that only plays ~13 sheltered minutes a night (i.e. Christiansen-Blankenburg) OR a pure shutdown pair that takes hard assignments (i.e. Richard-Peeke) so the top two pairs can light it up.
Trade a few defensemen for futures, trade a few forwards for futures (Nyquist, Robinson maybe Roslovic), package those futures for a big fish (young top six center) and voila! You have a contender.
The prospect list actually goes much deeper and JD indicated the plans to extend Gavrikov so he's like a fixture somewhere in the top 6 for another few years. I suspect they'll announce the extension at the start of the new league year next week. However, I completely agree with you that players will eventually be moved but not until CBJ clearly identifies the pecking order and a need to move them.
LHD prospects (no order) that are highly regarded: Svozil, Knazko, Richard, Makarov, Mateychuk
Add them to Bean, Gavrikov and Werenski and I think the future depth is really good. AND YOUNG. You have a similar situation with RHD, only less experienced, not quite as many but maybe more with projectable upside.
RHD prospects (no order) that are highly regarded: Blankenburg, Ceulemans, Jiricek
Add them to Boqvist and Peeke and you see how truly young the RHD side is but the potential is very high. I still think a veteran on the right side would help with development all around for this group but also think they need more depth with homerun potential.