I'm boggled that they rejected a Phil Kaufman script.
The man who would go on to write (or co-write?) the legendary "Raiders of the Lost Ark" and "The Right Stuff," and previously wrote "The Outlaw Josey Wales."
(I realized that he also would write the heavily flawed and dated adaptation for Michael Crichton's "Rising Sun," featuring my two favorite leads at that time: Wesley Snipes and Sean Connery).
Well, Kaufman never got to the script stage. He wrote one treatment in April 1977, and was still working on the story when the ax dropped on May 8, 1977, before he could actually finish a screenplay.
Also, Kaufman didn't co-write Raiders. He brainstormed it with Lucas and introduced the Ark of the Covenant to the story, etc., but he stepped away from it when they hired Kasdan to write it. That's why he shares a "Story By" credit with Lucas on the film but no writing credits per se.
Ahhh....
I stand corrected.
(I forgot Kasdan got the job for "Raiders" due to "Empire").