So it took me about 2 minutes, but I found the following registration website
https://iasext.wesleyan.edu/regprod/!wesmaps_page.html?crse_list=ENGL&term=1169&offered=Y#fall
He can see who is teaching every class.
He can look on this site and see who is visiting and who is permanent.
http://www.wesleyan.edu/english/people/index.html
He can also go on ratemyprofessors.com to identify inspiring teachers.