SAN FRANCISCO — Wilson Sonsini Goodrich & Rosati has appointed litigator Douglas Clark and corporate partner John (Jack) Sheridan as the firm’s co-managing counsel, replacing Steven Bochner, who is returning full time to his corporate practice.

Bochner was named CEO in August 2009, when John Roos left the firm to become the U.S. ambassador to Japan. Bochner said he’s pleased with the firm’s financial performance over the past 2 1/2 years, and that 2011 was the best year in the firm’s history.