Granted, there's no deal that could be made where we wouldn't be giving up the most talented player involved in the trade but, let's put it in video game terms: if Cousins is ranked at 96, and we get offered a deal for four players all ranked 85+, that doesn't even get you to the table? You don't even take the call?
There is no realistic scenario that comes close to matching this. You're going to get 2 teams to give up their best 2 players so that one of them can get Cousins? Or is Memphis going to give us Mike Conley, Zach Randolph, Marc Gasol, and some imaginary fourth near-All Star just to get Cousins? Nothing like this would ever happen in real life. If we have a Cousins fire sale we're getting one aging All-Star or one near All-Star level player and 2 first round picks which probably fall in the mid teens or later. That's it. That's the most anyone gets for trading a franchise player. Minnesota got Wiggins and junk for Kevin Love. New Orleans got Eric Gordon and junk for Chris Paul. The Nuggets got Wilson Chandler, Danilo Gallinari and junk for Carmelo Anthony. I see what you're trying to do, you could potentially construct a hypothetical scenario where a Cousins trade works out in our favor. In the real world the only way that happens is if we get a fleet of draft picks and then get really lucky in the draft. That's so far outside the realm of probability it's not even worth discussing.