He's working on his jumper: "After every practice, Jennings works with Trajkovic on his shooting, getting up as many as 500 jumpers. He credits Trajkovic with helping him improve his mechanics significantly (“going straight up and straight down, extending my arm, not fading away too much anymore, keeping on balance, not turning my hips a lot” Jennings explains), and indeed his shot looked much better than advertised in the three practices we observed, although he still has plenty of room to continue to improve, particularly with his pull-up jumper. "
There doesn't seem to be a problem with his personality: "Gone is the brash, arrogant teenager with the Kid ’N Play style flat-top who dominated the ball in absolute fashion and looked first and foremost for his own shot, his stats and the ultimate high-light play. In his place is a much more mature, respectful young man, always cheering on his teammates, showing great body language and painstakingly trying to do what his coaches ask of him, almost to a fault at times."
There are also a couple video interviews with him at this site,
http://www.draftexpress.com/profile/Brandon-Jennings-1114/, and he seems to be fairly down to earth guy, living with his mother and brother over there in Italy.
You're definitely right about his speed: "The best things that Jennings brings to the table, though, definitely can’t be taught. He’s incredibly fast in the open floor, highly fluid getting up and down the floor, and extremely natural changing directions sharply and attacking the rim. In today’s NBA, where speed is absolutely at a premium like at no other point in time, Jennings has game changing potential as a shot-creator."
And they think he might be able to show a lot more in a league like the NBA where all the handchecking is not allowed.
