I was comparing Hawes with the 24-25 year old Vlade, who, unlike the 20 year old Vlade, was in the NBA. But you raise a good question.
If Hawes is going to be 24-25 by the time he can make very many assists, what does that mean for us? He may not even be a King by that point, he'll be a FA a couple of months after he turns 23. And that's a long time in NBA terms; assuming he sticks around, would we have to suck for 3-5 years while trying to play a Princeton which he couldn't yet support? And what about JT? His assist numbers are miles from where the rookie Webber's were, and the rookie Webber was 20. By the time Webber was JT's age, he'd been the NBA's leading big for assists for 2-3 years.
My point is just that it's very risky to design your whole team around something which is unlikely to happen. Vlade + Chris combined for 7.2-9.9 assists per game every year they played together. Hawes + JT, so far, are good for 3.0 (with a 0.8 assist/TO ratio, at that). Maybe they will triple their output in the next year or two, but my money's on that not happening.
And even if it did happen, would it really kill us to have a pass-first PG?