I agree with you completely that Tucker should never coach again. He doesn't belong on a college campus. If he doesn't reach an accord with MSU to resign and the firing for cause stands he will not be eligible for employment at public colleges in a significant number of states. I can't imagine many of the others wanting to deal with the PR nightmare that hiring him under those conditions would imply.
I know that many if not most of the lawyers on this site are running ways through their minds that he prevails in a court of law but the hole he has dug for himself is deep with steep sides. If he loses, and I believe there is a solid probability of that happening then he and his lawyers get nothing. That court verdict also becomes available for Ms. Tracy and any other woman who he might have acted inappropriately with to use against him. He is facing some very serious consequences if he doesn't settle and MSU and their lawyers know it.
Much of corporate America would blacklist him for what has come out already. Nobody wants to be sitting in a courtroom facing a plaintiffs attorney asking them "So you knew what he was accused of and what he admitted to prior to hiring and you hired him anyways, why did you think that was a good idea?"
There are corporations out there and schools out there however that just don't care. If he comes to an agreement to resign, sits out a year or two, then spends a year or two as a consultant for an NFL team what to you think the response would be if the Baylor Head Coach told his AD "I need Mel Tucker as my Defensive Coordinator, he's a good coach, a great recruiter, and he could be the difference in getting us to the playoff?"
As a head coach he is done but considering the marginal success he had overall at MSU he may have been done as a HC anyways.