[ouid]

Identifying wasteful spending is expensive and inaccurate. An auditor will produce some number of false negatives (remaining wasteful spending) and false positives (useful spending that was cut). Both of these cannot be zero, and the closer you would like to get to zero, the more expensive the audit will be.

Additionally, the relative value of false negatives and positives, in something with as high a force multiplier as education, seems like it will probably fall on the side of false negatives.