He came aboard in 2015 to stabilize a troubled Metropolitan Museum of Art, led the museum after one director was ousted and then shared power with another. But on Tuesday, Daniel H. Weiss told the museum’s board that he would step down as president and chief executive in June 2023.
“The institution is in a strong and positive place — I’m proud of the work that we’ve done,” Weiss, 65, said in an interview. “I think it’s always…