Quick poll: When you were in school, especially college, were the best teachers young or old?<p>There are young teachers with talent, but in my opinion, the most outstanding lecturers were older and had a depth and variety of experience that the young ones couldn't match. Older teachers have the fabled 10,000 hours of deliberate practice to account for, as well as a diversity of experience and the time necessary to assemble some perspective on all of it.<p>So here's a big +1 for hiring adjunct professors from outside the usual pool of fresh young faces. Let the young people work, and the old people teach.