The Marlins have used different lineups in 16 of their 17 games, including Friday.
"We've run a lot of different lineups out there and we're trying to find a way to just get some production," Redmond said. "It seems that no matter which lineup we roll out there, it just produces the same thing."
The Marlins entered Friday last in the majors in home runs (four), runs (33) and batting average (.208).
"We've had many, many chances to drive in runs and we haven't been able to do it," Redmond said. "Really, it's coming to the point where someone [has got to] step up and drive in some runs -- and the guys who do it are the guys who are going to play."
Mahoney, 26, played in two games for Baltimore last year. He went 0-for-4 with the Orioles, and was 0-for-1 this year with the Marlins heading into Friday's game.
Mahoney did, however, have a respectable Spring Training; he hit .233 with three home runs in 31 plate appearances. He's also 6-foot-6 and weighs 240 pounds.
"He has very limited experience in the big leagues," Redmond said. "But at the same time, this is a great opportunity for him to show what he can do. Hopefully he goes out there and has a big night. That would be fun."
Tony Meale is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.