Before each round of the postseason, teams must submit a 26-man roster that can only change in the event of an injury or a positive COVID-19 test. If the Giants lose a pitcher to injury, the club can only replace the player with another pitcher. The same rules apply to replacing position players, so a front office that has mastered the art of maintaining optimum roster flexibility in an effort to create matchup advantages cannot make the type of daily transactions we've seen throughout the regul...