Mix-and-Match with Leaders and Anchors in 5/3/1 Forever?

Would it be okay to mix-and-match leaders and anchors? I checked online and in the book yet I couldn’t find a clear answer.

For instance if I’d like to do God is a Beast as a Leader and Pervertor as an Anchor?
Thanks.

Edit: As I go through the book again, I’m seeing that Jim hasn’t once said you could mix-and-match and that it is expected to do the Leader and Anchor of the same program. Is this right?