A letter writer to the Globe has the answer to Harvard’s budget problems: professors should teach more.

Adding one course to a four- or five-course load reduces by between 15 and 20 percent the number of professors needed to deliver the same quantity of courses with no increase in class size.

What I think people fail to realize, or are just reluctant to admit, is just how big Harvard’s fiscal gap is, and just how small an impact measures like this would have….