Idk, I think the only thing Zaitsev has on Holden is a more expensive contract.
Yes, Zaitsev was the top PK right D, but Holden was the top PK D regardless of side, and played more than Zaitsev in at 5v5 despite being each others most common partners.
Since the acquisition of Hamonic, our 5v5 RD icetime has been Hamonic (17:09), Zub (16:54), Zaitsev (15:05), I don't see Zaitsev as more than a bottom pair dman next year unless he really turns around his game, and as such I think his role is in jeopardy. Zub and Hamonic are both good penalty killers, Zaitsev may have gotten used more in that role, but we aren't giving up much if anything switching to them, where as I do think switching from Holden to Brannstrom as our top LD on the PK is giving up a lot.
Now, DJ has shown a reluctance to play guys on their off side in the past, so that gives Zaitsev a leg up since I'd agree that all 3 of Chabot, Brannstrom and Sanderson should/will be in the lineup. Maybe JBD or Thomson challenge for that final RD spot, idk, but if it were me, I'd play one of Brannstrom or Holden on their off side over Zaitsev, and I'd play both Zub and Hamonic ahead of Zaitsev.