It's less likely that three good shooters are going to go cold at the same time or that a defense is going to be able to shut down all three, as opposed to two or one. And with good outside play, you don't have to have Bam out beyond the arc.
Both Tyler and Andrew are vets, too. This isn't Duncan taking the league by surprise his first two seasons. There's book on Tyler and Andrew. Opposing teams know their games, their tendencies, where they like the ball and where they don't; they're defending them the best they can, it just hasn't worked three games now. NOT TO SAY IT WON'T, it just hasn't so far. However remaining games we win, this New Miami is going to be a tough out for teams.