The beauty of a liberal arts education in the United States, at Columbia in particular, is that it allows you to explore many of your interests, to sample different subjects and kinds of classes, and still graduate with a practical and well-renowned degree.
A liberal arts education, with a focus on the humanities is not professional school, nor should it be. In my opinion, the undergraduate years are a time for intellectual and social development before committing to a specific field--something you study in graduate school or on a job.
The kind of training you receive from an open education in non-pre-professional majors is far more meaningful because it affects the way you see the world and approach subjects, problems, people, and, yes, jobs.
I for one am glad that I studied Comparative Literature and Society because it gave me the freedom to study French and Spanish, to take courses in history, humanities, art, philosophy, literature, with a little bit of math and science for good measure.
What am I going to do with this vast array of knowledge?
I am going to go to law school where my ability to analyze, to read critically, to write papers of varying length, to communicate in multiple languages, and to problem solve will be shaped in a "professional" way. I think I gained more as an individual than I would have if I was merely "pre-law" Furthermore, I for one was not ready to career track myself until the later portion of my college career.
It is precisely the open possibility of studying in the humanities that prepared me to take steps toward what may be called by professional training, but without the skills acquired in my humanities program, I would not be adequately prepared to study law.
While I certainly think that humanities programs need to offer pre-professional advising in order to help students tailor their humanities experience to the field they might be considering, I do not think it is the place for explicit professional training. I also think that you can learn skills like public speaking through presentations and seminars that require participation. For example, in my Latin American Humanities class, each student had to study and prepare to present on various sub-topics and to give short presentations on various countries. In seminars, I have been cold-called and asked to give my opinion on complex readings. It is this "real life" practice that has honed these very practical skills.