I am finishing a PhD in Biology. We are a casual sort of people. Very informal. Jeans in the winter, shorts in the summer. I am now interviewing for entry level positions in consulting. My personality gets me points during the info sessions when we meet the business people informally, over snacks. I ask good questions. I think on my feet. I tell good stories. I would definitely pass the "Stuck in the Cleveland Airport" test.
However, when I sit down for real interviews, I believe that I don't fit the business-type. I speak in long sentences. We science-types like to tell stories with climactic endings. You want the bottom line up front. You want precise thoughts, in logical packets. I think in a free-flowing way. Here, we are encouraged to throw out random, unpolished, and vague ideas. I feel that I am at a disadvantage.
I've considered doing an internship with a consulting/business firm, to pick up on their behavior, mannerisms, and style. However, I need to earn a living to pay the mortgage, daycare, and so forth.
How can I remold myself into your model?