The A’s signed Hermida to a minor league deal in September, after he spent most of the season in the Red Sox organization. The 26-year-old posted an overall line of .216/.268/.351 in 239 plate appearances this year. Five offseasons ago, Baseball America ranked him fourth among all prospects, but Hermida has yet to be an impact player for a full major league season. He posted an .870 OPS in 123 games for the 2007 Marlins, but has struggled to match that level of production since.
The A’s acquired Wolf from the Orioles for Jake Fox in June. Wolf turns 28 next week and is coming off a season in which he threw just 12.2 major league innings. The righty posted a 4.26 ERA with 6.4 K/9 and 4.3 BB/9 this year. In the minor leagues, Wolf posted a 2.62 ERA with twice as many strikeouts as walks, so he appears to have some value as an organizational arm.