CHICAGO -- Until Brewers reliever Derrick Turnbow strings together some effective outings, manager Ned Yost is left trying to figure out how to use a once-key figure of the bullpen.
"It's hard, because you don't know from one outing to the next exactly what you're going to get," Yost said.
There is the good Turnbow, the one who tied a franchise saves record in 2005, made it to the All-Star Game in 2006 and seemed to emerge April 23 as a reliable option when he spelled over-worked closer Eric Gagne for a day and recorded his first save in a calendar year.
Then there is the not-so-good Turnbow, the one who lost the closer's role in 2006 due to command issues and saw them resurface on Sunday, when he allowed a hit and two walks without recording an out against the Marlins. Yost had to go to rookie left-hander Mitch Stetter, who wiggled out of the inning with the tie in tact.
Heading into this week's matchup against the Cubs at Wrigley Field, Yost was asked if he would use Turnbow in a tie game.
"It just depends on the situation," Yost said. "If I've got rested bodies, no, I wouldn't. I can't use him right now in those types of situations until he becomes more consistent. Every opportunity is a chance to be consistent, no matter what the situation is."
His tough day against the Marlins did little to inspire confidence.
"He just struggled from the onset of that last game," Yost said of Turnbow. "He came in and just did not have a feel for command of any of his pitches. Definitely, the consistency is going to have to settle down. He knows, too, that he can not continue to be inconsistent. He is going to have to find a way to command his pitches on a more regular basis."
Yost added: "It makes it kind of a guessing game."
Adam McCalvy is a reporter for MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.