I'm not sure I understand the question, Marion, but my answer would depend on what you mean by unnecessary attrition. A thorough, thoughtful admissions process can avoid a lot of problems that lead to a student withdrawing. For example, one of the most common reasons given by students for dropping out is financial. Often this is a convenient excuse but this careful financial planning prior to the start could reduce this cause. However, if someone lost a revenue source that may not be unnecessary attrition.
