Wisconsin Leadership Development Institute (WLDI) The Wisconsin Technical College System celebrates its successful leadership development program. Since 1995, hundreds of WTCS administrative and faculty leaders have completed the program. The entire System, as well as individual colleges, are strengthened through the enhanced leadership skills of its current and future leaders. Alumni Title Date Modified File Type WLDI Alumni 1996-2018 09/09/20 PDF File Brochure Title Date Modified File Type WLDI Advanced Brochure 09/08/20 PDF File WLDI Foundations Brochure 09/08/20 PDF File