With Mat Gamel out for most if not all of the season with a torn ACL, the Brewers will use Travis Ishikawa, Taylor Green and Brooks Conrad at first base. Being the only right-handed hitter among the group, Conrad's spot in the platoon is pretty well set.
"We'll see how it goes and who's hot," Roenicke said. "Conrad will probably play against most left-handers and the other two will switch off."
In center field, where Carlos Gomez is on the 15-day disabled list with a minor hamstring injury, time will be split between Nyjer Morgan and Norichika Aoki.
With both being left-handed hitters, their playing time may fluctuate more than the rotation at first base.
"Same thing," Roenicke said. "We'll just try to do matchups and who we think is going to hit that starting pitcher that night better. And if somebody gets hot, they'll probably play a little bit more."