Suppose I used to hold a tenure-track math position at a R1 institution, but then I was denied tenure. Assume I do not care about job security (and never cared) and I would be more than happy to keep working under the same conditions and would work just as hard as I worked before tenure denial. The question is: what are the reasons why the department would not be happy to keep me (under the same conditions)?
- Me working at the department is beneficial for the department at any given point of time. If this is true, then they should be OK with me remaining in my present position.
- Accepting someone for tenure-track is a calculated risk the department takes (because it can not judge purely from the post-doc record whether one is going to be a great researcher or not). Now that my tenure-track is over, they have figured out that I am not good enough and it is beneficial for them to kick me out.
- For an average person, the possibility of tenure is a strong motivator. It is beneficial for the department to have someone who has been promised tenure at any given point of time but it is not beneficial once the person knows they won't be given tenure. I am just a weirdo who happens not to care.