This is a great question, and a good article, but why limit students to six "must have" courses? Not surprisingly for Forbes, this list is heavily skewed toward business skills. Now, some are transferable to any situation an adult might face, and so Forbes has a good point. However, Colleges have already defined a core curriculum which includes a logic requirement, a math requirement, history, language, a science expository. Build on those.
The more intractible problem, in my opinion, is how to engage students, so that no matter what course they are taking, they are receiving the full potential of what college level learning brings: new knowledge, deeper insight into a broader sphere, curiousity about new ideas and openness to listening to them, critical thinking, time for reflection, organizing large quantities of data (qualitative or quantitative,) time management and performing under deadlines, communicating effectively with peers and faculty, navigating a complex system.