It's funny, the Borg is so much smarter than me. I've always been kind of resistant to the notion of the whole "sign a guy to a long-term deal then trade him immediately" (De Haan, Bunting, others...) because I've been concerned it'll ruin our ability to sign guys in the future.
But, what I'm coming to realize is that they're basically spinning gold out of yarn when they do. We go from nothing, to Shayne Gostisbehere for a year, to a 3rd round pick (assuming we offload him). Better than having nothing and then signing a guy to a one-year deal to be a stopgap. It's EA Be A GM BS, sign a guy then trade him for picks, repeat to get infinite picks.
All of that to say, I'm going to stop being resistant to trading Ghost or Walker (though if Walker keeps up the play he's showing this postseason he's a keeper). If we do have to re-sign Orlov, Ghost is probably gone. I wouldn't be opposed in a vacuum, it'd all depend on who the 1RD we bring in is and whether he's a capable PPQB1 (he better be).