PHOENIX -- Kirk Gibson is not ready to say just exactly who his closer is.
"If I told you," he said with a smile to a group of reporters Tuesday, "You guys would hold me to it."
One thing the D-backs' interim manager does know is how well Chad Qualls has pitched of late. In his last four outings, the right-hander has allowed two hits in four scoreless innings.
"[Monday] night, what I saw was a much more confident Chad Qualls," Gibson said. "I think we've got him on the right track."
It seems Qualls may have gotten away from throwing his signature sinking fastball and mixed in too many of his other pitches.
"That pitch is in your pocket, just trust it," Gibson said he told Qualls about his sinker. "You don't have to trick them. You've got a great sinker, throw it and we'll defend it."
While he would like to have more defined roles in his bullpen, Gibson is not in a hurry to make any pronouncements.
"We're just not there yet," he said. "And frankly they've got to earn that."