Probably worth noting that Pratchett wrote most of the "Adam and the gang" sections of Good Omens, while Gaiman was responsible for the riders and the more "myt

Probably worth noting that Pratchett wrote most of the "Adam and the gang" sections of Good Omens, while Gaiman was responsible for the riders and the more "mythological" parts. So I do see a pretty clear throughline from Sourcery to the Pratchett parts of Good Omens.