Steci at least certainly has tenure in a named chair, what’s more. If the author is using strict academic usage, so does Wiliams (who is called a professor, not an associate professor or assistant professor), what’s more if that’s the case, neither is in a position where they have to worry about promotion either.
No, but from now on they get to worry about:
1) Cocktail party invitations
2) Invitations to present at seminars
3) Publishers who will publish their works
4) Other professors who won't let them play professor games