Bouncy Castle said:
The great thing about Patterson is that his chapters are very short!
I do wonder why he collaborates with so many other authors, though.
Less of a collaboration, and more of a "I'm the bestselling author brand name, and you (partner) are a nobody, so in order to keep milking my cash cow I'll give you some general ideas and perhaps a rough plotline and maybe a bit of dialogue here and there but you'll do the all the writing and rewriting gruntwork in exchange for 40% of the profits.
Pterry himself has been doing these kinds of things for years. Sometimes the results are superb--like his collaboration with Neil Gaiman in Good Omens, which seemed to have 'equal voice' of Pterry and Gainman. Sometimes his collaborations with others just seems like he's tossing in a few ideas and letting someone else do the grunt work--as
The Long Earth, which seemed more like a Stephen Baxter book than a Pterry book in many ways. Then some books just look like he threw in some lower-shelf stuff to compliment the work done by others--like the not particularly engaging chapters he wrote for his part of the Science of DW books I'm not reading.
The worst is when an author whores out their concept to others with barely any involvement at all. Usually you know this has happened when the possessives start happening, i.e. "Frank Herbert's Dune" with some other nonentity writing crap.