My guess is that if they now choose to change of director for every other film, it's just because you can't really change the formula, you can merely try to film it your way.
“I just feel happy to be in America, like I said, it's the most beautiful country in the world.”
“Life forms illogical patterns. It is haphazard and full of beauties which I try to catch as they fly by, for who knows whether any of them will ever return?”