I guess you could say they've got options. Singleton may need more AAA time next year, and Wallace or JD may fix the holes in their offense, although personally I'm not holding my breath on either.
My main point was that this team can conceivably be productive even if both corner OFs are table-setters, rather than power guys, next year, because they're likely to get power from 1B, DH, C, CF, and 3B.