If there was a can't miss guy in this year's draft I would move anyone not named Hayward, Favors, Gobert, or Hood to get him. And I would move Hayward or Hood if that can't miss prospect was in their position and it would create a logjam, and I would move Favors if it were a Shaq/LeBron level talent.
That said, from what I have read there isn't a prospect like that and team chemistry makes as big a difference as talent to win the whole thing (witness Malone's Lakers who should have steam-rolled everyone, but their chemistry was **** thanks to Kobe "I have to be the man" Bryant). I would not want to break up those 4 if I could help it. And frankly, the way we played at the end together as a team I could take this list further into the roster to include Burks (jury still out how he will fit in with the current group chemistry-wise), Booker, and Jingles, who all are more than serviceable and add to the locker-room and bench camaraderie.
I would prefer to try to find someone in free agency or through a trade that can help us now, or stack out chips waiting for the trade deadline with a few very specific targets. Imagine if we are able to go 24-17 up to the deadline (or thereabouts) and then pick up an impact player who can shore up a few holes for us. Then we go 31-10 the rest of the way (or 30-12, whatever) and storm the NBA putting ourselves in the thick of it. We could end at 55-27 and be playing the best ball of the season for us. Would not be a stretch to get out of the west at that record with some momentum.