Writing in the workspace is quite different from writing in college. The primary reason for this is that in college, the professor does not have a vested interest in understanding your work. When a professsor reads a paper, he or she will grade it for clarity, etc, but not to actually use the paper. In the workspace, someone must actually understand a peice; style takes a backseat to meaning.

Of course, many times in college, the reader does have a vested interest in your work. Writing research summaries for professors requires a very different style of writing from a typical english class. While college writing requires you to write well, it does not place the onus upon the reader. In this sense, college writing is like a one way street ... the writer creates content but there is no interested reader, just a grader. In th workspace the content itself isn't as important, but the street becomes two way. Other people from a variety of backgrounds must be able to understand your work.