As we head toward the second half and the trade deadline, the teams with the most incentive to make a splash are those living on the margins, with their playoff fates in doubt. Manny Machado is a no-doubt-about-it superstar, but in the context of losing him to an injury or being kidnapped by aliens, the loss of Machado is essentially meaningless to Baltimore's playoff hopes.
Who's indispensable to his team's postseason chances?
