Well, I guess...? Tonally they feel completely different and Good Omens draws a lot of its DNA from The Omen (and, wonderfully, Richmal Crompton) whereas I don't see any of that in Sourcery.
I find it hard to see Good Omens as a do-over of Sourcery, but I guess they do have something in common.
I find it hard to see Good Omens as a do-over of Sourcery, but I guess they do have something in common.