Hakeem Olajuwon is now a Rockets adviser who has expressed interest in an ownership stake. So the Nigerian great no longer can run his post skills school where he once hosted Amar’e Stoudemire as a Knick. Nevertheless, Olajuwon said he would love to work with 7-foot-3 Kristaps Porzingis, but frankly, the retired Rockets superstar doesn’t think he needs much help. Porzingis already has dabbled in attempting the “Dream Shake’’ earlier this season. “I think [he makes it] easy,’’ Olajuwon said. “He’s very skilled, very smart. The height he has the advantage in the post. The guy that got skill in the post game, he’s already amazing. It gets much easier for him.” Olajuwon missed the chance to see Porzingis live Saturday as the Knicks star sat out the Rockets game at Toyota Center with back stiffness. Porzingis’ improvement this season has been his post game — more in the mid-post than deep inside. “Everyone can always get stronger,’’ Olajuwon said. “But he’s fantastic, always plays with confidence, has a lot of moves, shooting 3s. I think the post game is most important because of his length. He’s so skilled he can do whatever he wants on the floor.” Porzingis said he has watched a lot of film of Olajuwon, who beat the Knicks to win the NBA title in 1994.