There are all manner of things a department can do to make a tenured, non-productive faculty member's life harder. The sudden loss of lab space is a particularl

There are all manner of things a department can do to make a tenured, non-productive faculty member's life harder. The sudden loss of lab space is a particularly common one. Also, keep in mind that a good many tenured professors are still in "soft money" positions, and have to bring in grant support for parts of their salary.