Tolbert was dogging Yao before the draft and before he saw Yao play. At least he's smart enough to give a decent evaluation of him. But, saying he'll never be a 25pt a night player is pretty ridiculous. He's already scoring in the low to mid 20's pretty frequently for a rookie. Imagine 3 or 4 years from now when Cuttino's no longer on the team (inside joke, get it??).
Yao is not far from 18/12 already. So Tolbert Yao is not going to get much better. He's only been in the country for 100 days.