Translation: Justin has a bunch of action scenes he wants to do and asked us to write a movie around them.
Interesting.
To me, that is kind of like saying Peter Jackson can't direct a big budget fantasy movie like LOTR because he is a horror director from New Zealand (that's racist!

.
Peter Jackson
can direct a big budget movie like Lord of the Rings
because he's from New Zealand. But he can't direct an even bigger budget movie like The Hobbit because by then he was from Hollywood.
But isn't it's possible for you to agree that basing a movie around a bunch of action scenes is not as good as letting the story organically determine the scenes and action to be included? I think that's the message hidden in Saul's sarcasm.