Dewey & LeBoeuf has confirmed that 66 partners–about one in five of the firm’s 350 partners–have seen their compensation reduced by as much as 80 percent over the past 15 months. The reductions are meant to weed out less-productive partners, firm chair Steven Davis tells The Am Law Daily.

Those affected by the “substantial performance-related reductions to their compensation” represent a wide range of practices, Davis says. The partners include some who have been practicing for 25 or more years.