The Padres have by far the best bullpen depth in all of Major League Baseball, as they have six guys who can confidently take on high-leverage roles. It is vital to have pitchers that can handle the seventh, eighth, and ninth innings for your ball club. The pitcher who comes in for the eighth inning is also known as the setup man, and the Padres had arguably the best one in the league.
Jason Adam made the move from the seventh-inning guy to the setup man after Tanner Scott signed with the Dodgers in free agency.