Lakers don't need a CP3-type PG in their system
The Lakers system is Phil Jackson. It's not the players, it's about him and this is probably Phil's final year.
When he goes ... the Lakers system, the Triangle offense, could go with him.
No other head coach in the league today has had success with that offense. LA can either roll with an inexperienced head coach like Brian Shaw or they'll hire an experienced coach who'll change their system.
Just trying to say, due to Phil's impending departure, the Lakers are not tied to their system. There is a good chance they'll be making changes to it in near future + they will be increasingly open to those changes if it involves a talent like CP3.
On a final note, Jerry Buss, Lakers owner, would absolutely love to have a point guard like Chris Paul. Someone who could get the team out in the open court and bring a huge amount of excitement to the Lakers. Ala Magic Johnson and the showtime days.