Writer and comedian Gavin Speiller has brilliant ideas for movies. He's not able to finish them, though. He's more of a big picture sort of guy. This one, for example, is about a cash-strapped baseball team desperate for new talent. They can't be choosy about recruiting players and end up an entire team of convicted serial killers.
Tom Hanks, you've done this sort of movie before. You'd be perfect for the role of Greg.
You can find more unfinished scripts at the link.