In the early 1990s, Australian policymakers began explicitly promoting increased use of flexible delivery in vocational education and training (VET). Some researchers argued that many students lack the learning skills required to deal with the unique demands of flexible delivery. Concerns were also raised about the VET sector's capacity to help students develop needed cognitive and metacognitive skills. A review of the literature revealed wide agreement that students' success in flexible delivery and open and distance education in Australia and elsewhere is generally determined by a complex interplay of factors, including the following: readiness for self-directed learning; ability to balance the time demands of study with other commitments such as family and work; level of literacy; ability to understand and deal with assessment requirements; level of motivation; and previous educational experiences. Two case studies based on the actual experiences of two of six students interviewed about their experiences in flexible VET delivery were reviewed. Both students decided to withdraw from their VET course because of several interconnected factors that built up over time. Both cases illustrated that some problems that can be addressed quickly in face-to-face learning environments are much more difficult to resolve when students are off campus. (Contains 23 references.) (MN)