OIERP Office of Institutional Effectiveness, Research, and Planning Home › Our Team › Leslie Welch » Single Entry OIERP Home Our Team Reports and Data Quick Facts Fact Book Common Data Set Student Achievement Data Information Request Form Contact OIERP Go back to directory. Add to Address Book. Leslie Welch Student Retention Specialist (College of Applied and Natural Sciences) Phone: 318.257.2832Email: lwelch@latech.eduOffice: WYLT 1123