Rob Manfred envisions more experiments with speed-up rules, such as limiting pitching changes and trips to the mound, or requiring each pitcher to face multiple batters. Speaking at the Sports Diversity & Inclusion Symposium on Wednesday, the new baseball commissioner said he doesn't see any need to expand the designated hitter to the National League. Manfred also expects teams and the players' association to discuss possible changes to September call-ups during collective bargaining for a contract that starts before the 2017 season. More...