Replacing a legend is no easy task, but as William Griswold prepares to take over the small but prestigious Minneapolis Institute of Arts from longtime director Evan Maurer, he will face immediate questions about how he plans to build on Maurer’s considerably legacy. “Griswold will inherit many of Maurer’s ambitions, the most significant of which is a current $100 million capital and endowment campaign. The physical centerpiece of that campaign is a 117,000-square-foot addition scheduled to open next spring that will add 40 percent more gallery space and upgrade the existing museum building. The expansion wasn’t Griswold’s idea. But figuring out how best to make the expanded facility work will be his job.”