I'd rather they scrap a bad script and delay a few months to get a new one than to have a crappy movie made from said script.
I don't know--I would rather DC characters just have good movies first. The writing for GL was Captain America television pilot bad. DC has great characters and properties--they need to invest in quality film makers and actors. I have heard people comment about the commercialism of the Marvel franchise, but the people who make the films do care about them and it shows.