The A's didn't plan it that way. That's just how things have shaken out.
"They all deserve to be here, but at some point, we're going to have to add a right-hander," Melvin said Saturday. "We have some resources that have to get ironed out at Triple-A.
"We have to have left-handers who can get some right-handed hitters out," Melvin added.
Oakland's bullpen, as a whole, has held opposing hitters to a .215 batting average, third best in the American League, and has an ERA of 2.96, fourth best in the league.