A group of college leaders strategize about how to design a new undergraduate experience—and get an unexpected boost from an accreditor. ANDOVER, Mass.—The stagnation and disinclination to experiment that many critics believe is rife in higher education may loom over some gatherings of campus leaders. The College-in-3 event here this week wasn’t among them. Several dozen college administrators, faculty leaders, accreditors and others gathered at Merrimack College to share progress reports on, and commiserate about, common roadblocks in their efforts to create three-year bachelor’s degrees.