Lebron effects games more than any player to ever live.
As for the game last night, the Grizzlies bench was very impressive, didn't miss a shot. If that happens consistently, then them and the Clippers will run away in the West. I suspect they will correct to mean at some point (3 guys shooting over 50% from 3 off bench right now) and things will even out. But right now, they are definitely one of the 4 to 5 favorites in the West, at worst.