Lakers+USC=#1
Fuck CBS
Spurs have/had a pure PG in Parker. The Heat/Cavs had Lebron who operated as the defacto PG. A lot of these teams consisted of a lot of talent. Now, if the Lakers are sporting multiple all-stars, then you're right - they don't need a pure PG in that sense. Since that is not the case, the Lakers with their current personnel need a PG to tie everyone in together.
Point being, not all title teams are built the same.
Parker is not a pure pg