As posted on pitchersduel.blogspot.com Each major league team is allotted 25 roster spots at any given time. Any combination of hitters and pitchers is legal. Up until the 1990's it was common to see a team carry just 10 pitchers (often less), allowing flexibility on the offensive side, while relying more heavily on 'ace' relievers to come in for multiple innings at a time if the starter couldn't finish the game. Needless to say, that has changed a good amount in the past 20 years, ...