The lecture method of instruction ultimately trains students to take notes, and to repeat the substance of those lectures on an exam. The half-life of this kind of learning is extremely short. In contrast, the case method trains students to develop out recommendations to realistic problems through direct engagement with those problems. The student has a large role in this too. In my experience, the students who do best at Darden show an enthusiasm for involvement with the cases and the learning process, and for teaching themselves.
Good judgment comes from experience.
Experience comes from bad judgment. The greatest value-added in professional training is in the growth of judgment, as opposed to growth of objective knowledge such as terminology, formulas, etc. Wriston, the former CEO of Citibank, rightly argues that good judgment cannot be taught, it can only grow through experience. Thus, professional training should have a significant experiential dimension. Book learning isn't enough.