With Sengun, and maybe add in like Thompson twin, and Jabari, then they could do it. I mean if they really want to, then the package has to include Sengun. I just checked Espn trad machine and those three for Giannis does work and gets accepted, and would be great for Bucks, they would be definitely amazing there.
But in that case, Rockets would be ; Durant + Giannis and then third best player is freed van vleet, and fourth best is tari season. Are you ok with a team that is just two superstars and one role player? Rest just rookies and sophomores and all around bad players. I think that would be a bad deal too. Rockets would be getting a bad return on this, and Sengun is a star player, they need to keep him.
I guess that's not a good trade for Rockets, KD and Giannis are both scorers and most of the time they want to have the ball, much better to keep those young stars and lead them to work, blend and established good chemistries together, but we don't know what may happened if Rockets is to desperate acquiring Giannis, they will be going to gamble with how KD and Giannis will play alongside each other.