REXBURG, Idaho — Getting a 34-year Harvard man to abandon one of the nation's most prestigious business colleges for an Idaho church school would seem to demand nothing short of divine revelation.

For Kim Clark, who marked his last day as Harvard Business School dean on July 31, it was nearly that.

It came in the form of a phone call last May to Clark, a member of The Church of Jesus Christ of Latter-day Saints, from President Gordon B. Hinckley, the 95-year-old leader of the Latter-day Saints. President Hinckley asked the economist to head Rexburg's Brigham Young University-Idaho, which just five years ago was a two-year junior college.

"You have to appreciate what this is like," said Clark, 56, of President Hinckley's call. "We behold him to be a prophet. Imagine yourself getting a call from Moses."

Scholars of Mormonism say Clark's exchange of cosmopolitan Cambridge, Mass., for rural Idaho offers a glimpse of the allegiance Mormon laity have to leaders in one of the world's fastest growing churches.

"LDS people are pretty responsive to that sort of a direct call, a mission call, almost," said Lawrence Foster, a religious history professor at the Georgia Institute of Technology in Atlanta.

It will be a drastic change in scenery and culture for Clark, who began his Harvard career as a freshman in 1967, interrupting his stay only for a two-year church mission in Germany and a year at BYU's Provo campus.

Rexburg, which has just 17,000 residents and boasts just two non-American restaurants — one Chinese, one Mexican — and liberal Cambridge, Mass., are worlds apart.

At Harvard, for instance, there is an open gay, lesbian and bisexual community among faculty and students. At BYU-Idaho, Mormons believe same-sex relationships violate God-sanctioned marriage. Students this month took part in a "Modest is Hottest: A Guy Panel" forum extolling the virtues of appropriate clothing.

No stranger to the West, Clark was born in Utah and raised in Spokane, Wash.

Even so, he's been to Rexburg just once for an eight-hour visit following the June announcement he'd be taking over.

"It doesn't matter to me what other people think about" the decision to leave Harvard, Clark said. "I'm pretty sure that if you and I have this conversation 10 years from now, people will know about BYU-Idaho."

Officials at the 117-year-old school say it's not an academic wilderness.

It eliminated varsity athletics to concentrate on academics in 2000, the year President Hinckley announced the school would offer four-year degrees. A three-tiered admissions system allows for more students than other schools with more traditional semesters, in part to accommodate men and some women who return from LDS missions throughout the year.