Lecturer told to "work harder to find the excellence" in his students' essays

From the Times Higher Education supplement:

A senior lecturer at a leading university has spoken out about the pressure across the sector to mark students' work leniently, detailing examples of his own marking decisions being overturned.

Stuart Derbyshire, a psychologist at the University of Birmingham, described how an examiner increased the marks he had given his students and told him he had to "work harder to find the excellence" in his students' work.

Looking back, I think that was what I suffered from. My teachers never worked hard enough to find the excellence in my essays.