Taking a Step-by-Step Approach to Growth

During the recent years of market exuberance, as many museums completed high-profile expansions, Mr. Benezra followed a pragmatic course of expanding the museum in manageable steps. On May 10, the museum is to open its first new space since 1995 — a 14,400-square-foot rooftop sculpture garden, designed by the San Francisco firm Jensen Architects. On display will be large-scale works by Louise Bourgeois, Ellsworth Kelly and Barnett Newman, among others.