The only way Zadorov is a good move is if one of Murph, DeHaan, or Seabrook leaves--otherwise he just jammed up the D like it's 2012. Right now we're running Keith/Seabrook/Murph/Dehaan/Zadorov/Boqvist. That's at least 1 too many middle pairing guys (technically 2 too many, but we're still press-ganging Keith as a top pairing guy because no one else comes close). We only got 1 open slot for the D-prospects to get if we relegate Seabrook to the pressbox to watch Matlock every night.
Otherwise, like
@MassHavoc said, It's not a complete rebuild. Even assuming Zadorov is an upgrade to the mid-tier, they have to vacate that mid-tier for the next gen to start getting icetime to see what we got in them.
Someone on D has got to go. Seabs would be the best choice but I don't see that happening (nor burning 6.8M in the pressbox each night). Ideally it's Murph or DeHaan, with an outside shot of Boqvist, but by moving on Zadorov before dumping the extra guy it just made that extra guy that much harder to move (or get a slightly better return on them). Yes, I know there's a lot of time left to make
a move but Stan could have played this WAY smarter.