When classes begin at Florida Atlantic University in the fall, Jeffrey L. Buller will mark his 15th year as a dean. After serving as a dean for roughly half of his career in higher education, Mr. Buller has had plenty of practice in creating workplace environments that help department chairs and faculty shine on the job. And when academic departments run smoothly, with professors who have the support they need to excel at teaching, research, and other parts of faculty life, Mr. Buller knows he?s on the right track.