• Professor and Associate Head, University of Georgia, 2004 - 2006 & 2000 - 2002.
  • Professor, University of Georgia, 1999 - Present.
  • Associate Professor, University of Georgia, 1992 - 1998.
  • Visiting Assoc. Professor, Univ. North Carolina at Chapel Hill, Fall 1992.
  • Assistant Professor, University of Georgia, 1987 - 1992.
  • Visiting Assistant Professor, Purdue University, 1986 - 1987.