After two substantial combinations in recent years, Clark Hill has appointed its first new CEO in nearly two decades, in a restructuring of the Am Law 200 firm’s leadership.

John Hensien, current co-chair of Clark Hill’s automotive and manufacturing practice, will become the Detroit-based firm’s chief executive officer in January 2021 after a yearlong transition period, the firm announced Wednesday. Current CEO John Hern, who assumed the leadership position in 2002, and Pittsburgh-based executive committee member Jeffrey Conn will become firm co-chairs, a new position. Conn served as managing partner of Thorp Reed & Armstrong prior to the Pittsburgh firm’s 2013 merger with Clark Hill.