Odds and ends

Former Dodgers general manager Farhan Zaidi is the new president of baseball operations for San Francisco. Zaidi, 41, will report directly to Giants CEO Larry Baer. … The Dodgers picked up the team option on manager Dave Roberts’ contract for the 2019 season, president of baseball operations Andrew Friedman announced. … The White Sox have extended manager Rick Renteria’s contract. General manager Rick Hahn declined to give specifics other than the extension goes past 2019, when Renteria’s original three-year deal was set to end