Do it in largish chunks. Like "Part One" is one person's and "Part B" is someone else's. You'll have to structure it so the parts are similar in length and have a good story arc to them but I've seen that done quite successfully in various SF stories I've read.
Ok, done with breakfast, made dinner (crock pot roast. With wine. So we have a wine that automatically goes with dinner). Goal today: write. Making a pecan pie tomorrow to take to Thanksgiving in Chicago but as Talon said, we can't make it today unless we make two :-)
TurkeyMoot was just about a year ago. Wow.
Well...I think I have a solution, but it requires a full re-write. Dumping much of the amnesia story line and giving her a completely different backstory.
Guess I work from where I am forward and do the rewrite after the month of November.
Mmmm...rewrite. Better than just plain editing.