If I'm an opposing coach, I tell whoever is guarding curry to never leave him under any circumstances. It seems like every game 2 of his 3s come from missing one, someone getting the offensive rebound and passing it back to him wide open because his man went to crash.
easier said than done
as the game wears on fatigue sets in, instincts take over.
20 years of basketball experience is telling them to secure the defensive rebound/fill the lanes. so they leave curry.