Higher education for decades has consistently drifted away from employing full-time faculty in favor of part-time, or adjunct, instructors. But one Michigan community college is shaking up the sector’s employment model in a different way. As of July, Northwestern Michigan College’s new adjuncts aren’t even institution staff — they work for Edustaff, a staffing firm. It’s one of several Michigan community colleges, like North Central Michigan College, to adopt this approach.