Kobe Bryant was not Kobe Bryant coming out of high school, he was a unknown senior who had to work on the things he did to become who he is now. Marshon Brooks is not Kobe Bryant right now, but if worked on the things he needs too he very well could become the next Kobe Bryant.
An interesting thing is if the Jazz took Brooks at #12 (which I would be very excited if they did), that is right where Kobe was drafted #13 by the Hornets.