If you take Infiniti you're left with Nissan -- if you take from Sengun you're left with Dat Son. Spoiler
20 more dunks than Green this season. Not sure why Green stopped dunking. Maybe it was the dunk contest. NFT.
Not really much athleticism to take away from. Virtually all his dunks come from running starts when the D is not set. He can still do that after bulking up by virtue of being 6'10. Even "midget" CP3 at his ripe age can still dunk with a running start.
He is one of the most limber bigs I ever seen. Him do stretches is truly amazing for his size. I really don’t think he get “bullied”, so why should he charge his physique. He is a smooth player so why not have a smooth body to match. There are other aspects of his game that need focus.
He needs to add shooting range to his game right now. Let the strength come naturally via maturing ND lean muscle training, more Hakeem than Shaq.
Defensive? I know this is a joke thread but answering seriously: Sengun would get more athletic if he gained muscle (bulked up). Just taking diet and strength training more seriously.