By Holland Cotter
|“The Holy Family With the Young Saint John the Baptist” by Andrea del Sarto|
“Andrea del Sarto: The Renaissance Workshop in Action” is at the Frick Collection, 1 East 70th Street, Manhattan; 212-288-0700, frick.org. “Andrea del Sarto’s Borgherini Holy Family” is at the Metropolitan Museum of Art; 212-535-7710; metmuseum.org. Both shows run through Jan. 10.