1. Associate Professor, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 1 University Station C1752, Austin, TX 78712-0273 (corresponding author).
2. Assistant Professor, Dept. of Civil, Architectural, and Environmental, Engineering Construction Engineering and Management Program, Illinois Institute of Technology, Alumni Memorial Hall, Room 216, 3201 S. Dearborn St., Chicago, IL 606163.
3. Associate Professor, Dept. of Management and Entrepreneurship, Hankamer School of Business, Baylor Univ., One Bear Place #98006, Waco, TX 76798-8006.
4. Project Manager, AREVA, 33 Rue La Fayette, 75442 Paris Cedex 09, France; formerly, M.S. Candidate, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 1 University Station C1752, Austin, TX 78712-0273.
5. Construction Six Sigma Black Belt, Bechtel Corporation, 3000 Post Oak, Houston, TX 77056; formerly, M.S. Candidate, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 1 University Station C1752, Austin, TX 78712-0273.