Looking at their schedule I didn't expect the Lakers to start 3:0 this season. Also if you consider they were down 22 points against the Suns and still managed to come back.
People were talking about signing Reddick, that he has no experience, he is too young, and so on but actually you can see his system working until now. Quick ball movement and screening, a little bit like what Steve Kerr implemented at the Golden Staten Warriors. Also obviously it helps that Davi plays like an all NBA first team player at the moment, the numbers he is putting um in the first 3 games really are impressing.
For all the statistics lovers, the Lakers haven't started 3:0 since the 2010/11 season.