Why do people such as Christopher Kiess think we should get rid of an MLS instead of revamping it? The notion that an MBA is a better degree seems absurd, though he does say that for public libraries rather than academic ones. I don't know much about public libraries. For running an academic library, I do not see how an MBA instead of an MLS would be useful unless you are strictly a business librarian. An MBA is not a research degree.
Furthermore, many good librarians probably ended up in librarianship because they were not business-minded. At least that's how I ended up here. My worst grades in undergrad were in my two business classes (solid B's, but still my worst). I feel I could learn the business skills needed to manage a library if I were to ever move into management, but don't think a business background could have prepared me for librarianship.
That said, I wish I had learned more about the business part of librarianship in grad school, particularly budgets. There were many practical things I wish I learned in grad school, though at least I learned a lot of them during my job while in school, and at my internship. I wish knowing basic HTML and navigating gov docs was a requirement for every new MLS, as well as a sense of the profession and the theory behind it.
Many things about an MLS are laughable. But we should try to get it improved, not get rid of the degree.