Toronto’s Art Gallery of Ontario is laying off 71 employees as it begins work on its $195 million Frank-Gehry-designed expansion. “This likely is the harbinger of further cuts in staffing over the three-year construction period that is expected to conclude in the spring of 2008. The AGO has an estimated 450 full-time and part-time staff. The initial layoffs involve 58 staff members — 18 of them full-time — in the AGO’s retail and food/beverage operations, as well as 13 temporary employees.