Over in the Underwater Basketweaving department:
One of the folks (Joe) hired fifteen or more years ago to teach reed preparation (back when it was a field in its infancy, before many people actually got phuds in reed preparation) always really wanted to teach brackish water weaving, and hasn't kept up in reed preparation at all. All his publications are in brackish weaving, as are his projects. And he's well-qualified to teach brackish weaving.
But, that means the current person teaching brackish weaving isn't getting the upper level courses in brackish weaving she likes to teach, and she does't have tenure, so is getting pushed into more introductory weaving courses. What happens with that line if Joe really does claim that field (Joe has 5-10 more years before retirement, probably). UB can't afford two brackish weaving people, especially if they also need to hire another reed preparation person.
The newer folks in reed preparation, though, the folks who did phuds in reed preparation and are really into it, want to hire more reed preparation specialists, since Joe really isn't qualified any more and doesn't want to teach those courses anyway. We need more reed preparation classes taught all around because it's a growing and important field.
What to do?
Then there's the newish hire, Alice, whose spouse Guy was hired a few more years ago on the tenure track. Alice was hired for the patterned weaving position, and while she did patterned weaving in the past, she's turned all her attention to non-patterned weaving, and really isn't interested in patterned weaving at all.
She's teaching patterned weaving, not very happily, but what's going to happen in three or four years when she comes up for tenure? Assuming Guy gets tenure, is there really any possibility that she won't? And will she totally toss aside the patterned weaving stuff if she does? Need I mention that Guy is one of the men who hangs out drinking with the dean on the back porch, and has for years? (Yes, the very dean who (in an earlier position) appointed the hiring committee that drew up the job description for the patterned weaving job, back when folks thought she was really into patterned weaving?
What to do?
How do we balance people's desires to do whatever it is they want to do with our needs to offer courses and keep within our budget? How do we keep the young brackish weaving scholar happy without upper level courses? What do we do with the tenured person who wants to move into other territory? What do we do with the non-tenured person who wants to move into other territory?