Lou was picked straight out of High School, and these past few years were to establish him as an NBA quality player and provide on the job training. His new contract demonstrates the Sixers thnik he's an NBA player, and it's time to see if he can be a starter.
What other position do you want a 6'1" guy playing? You want someone that size at the 2 guarding Kobe? If Lou is going to be a starter in the NBA he has to be a point. The fact that they drafted Jrue shows that they are hedging their bet.
IMO, the ability to be a scoring threat and an able penetrator are qualities you want in a point guard. Defenders worried about where he's going forget about their man which makes them open. Drawing a crowd whiole driving the lane leaves easy dump off passes to Brand or Young. I've always looked at Williams as an Iverson light- a similar game but more disciplined, lightening quick very dangerous on offense, a little weak on the defensive end, but a good ball hawk. With the shooters he has around him, Lou should be able to get close to 8 assists a game and put up 15-20 points, that's a pretty good point guard, equal to what Andre gave us last season.
Because Lou has to be proficient at the point to have a great NBA career, he himself is motivated to be that kind of a point guard.
Willie better learn to be a better shooter, lock-down defender and and able to hit an outside shot, or next season will be the last in which he has a solid contract.