Seminary professors, bless ‘em, are saddled with expectations that run the gamut, and they forge on, day after day, knowing that the likelihood of having “another Billy Graham” in their classes is beyond remote.Though their patience be tested, they give their best shots, even for struggling students who feel called to the ministry from a myriad of backgrounds far removed from theological study.Dr. Jimmie Nelson, longtime professor of preaching at Southwestern Baptist Theological Seminary, is a couple of decades removed from fulltime teaching. His memories, though, are aglow with thoughts of classroom experiences. He has always been a respected mentor ...