Vincent Tinto (Syracuse University) has written a brief and provocative article about the success of underprepared students. A teaser:
[T]he success of academically underprepared students does not arise by chance. It does not arise from practice as usual, but is the result of intentional, structured, and proactive efforts on their behalf that change the way we go about the task of providing students the support they need to succeed in college. Without such support, the access to college we provide them does not provide meaningful opportunity for success.