The skills covered in that course are fundamental to any law practice. Every year, graduates of the ICN course remark that they learned skills through ICN that benefit their practice daily. The ABA requires clinic classes to be small, to allow for adequate and proper supervision of each student. Faculty members observe or review all student work and provide detailed critiques. Of course, this close supervisory relationship between professor and students mean that clinics take significantly more time to teach than other courses.
Clinics are therefore a significant investment of faculty resources by the law school.
All of these professors also teach simulation skills courses.