Hembree and Kieschnick, although lesser-known, could find their way to San Francisco sooner. Hembree struggled a little in 2012 as he jumped from High-A to Triple-A and battled an elbow strain, but his 4.19 ERA belied a solid 1.16 WHIP, and he struck out a batter per inning. Although there's little room for him in the closer mix at the major-league level, Hembree, who throws in the mid-90s, could eventually join the bullpen as a low-ratio, high-strikeout middle reliever.

Kieschnick is a big-swinging outfielder who hit .295 with 15 home runs in 234 at-bats last year. He missed three months after fracturing his left shoulder against an outfield wall trying to make a catch on a home run. With the Giants probably juggling Gregor Blanco and Andres Torres in left this season, it's not unlikely to think if they're hurting for runs, and Kieschnick gets off to a hot start, he could get the call. This is pure deep-league talk, but if I'm picking an NL-only reserve (or even a dynasty league reserve), I'd probably go for Kieschnick first out of these three players.