yao has to be more aggressive. i see him "act" aggressive at times but its just not helping himslef. being really mad is different from acting it if u knnow what im saying. more importtantly he has to kick some ass showing his opponents that hes the man that they "midgets" cannot intimidate.
in terms of skills yao isnt easy to guard if he really wants to score. improve what i mentioned above he should be quite unstoppable