Let the Faculty Teach - NYTimes.com Re "Trying to Find a Measure for How Well Colleges Do" (news article, April 8): Beyond seeking a measure of college student achievement, more colleges - especially the famed research universities that attract the brightest students - should focus on good instruction. Let the best faculty members teach courses, rather than allowing them to buy inordinate amounts of "released time" from teaching and having untrained graduate students take over this responsibility. Provide instructional support to all faculty members, and make it prestigious to be a great teacher. Only when the three time-honored universal criteria for promotion and tenure - publications, college service and teaching - are given equal value (rather than in this descending order) will we see genuinely improved learning. Besides, the great researchers will also inspire students better than most! ALFRED S. POSAMENTIER Dean, School of Education Mercy College Dobbs Ferry, N.Y., April 8, 2012