Reaching a new goal to graduate 80,000 more students in the next 15 years will require more paths to degrees, improved retention rates and higher enrollments, the University of Wisconsin Systemâ??s top academic official said Thursday. The strategies will include adding three-year degree programs on several campuses, increasing the use of online courses, and luring back adults with some college credits to finish, UW System senior vice president Rebecca Martin told the Board of Regents. “This is aspirational — but also, we believe itâ??s possible,” she said of the goal as the regents kicked off a two-day meeting at UW-Fond du Lac.