It’s no secret that the partnership structure is a hard way to run a large organization. With a nod to that business reality, one of the country’s oldest and largest law firms, Morgan, Lewis & Bockius L.L.P., has radically reorganized its management structure to move from a consensus-oriented committee system to leadership by a gang of four.

This October, partners approved a plan to strengthen the governing authority of the chair and to divide the position of firm managing partner into three jobs: managing partner for practice, managing partner for operations and managing partner for legal personnel.