I hate to sound like my grandfather did back in the day, but the Reds lack bunting skills!
As recently as Tuesday night, Loshe failed to sacrifice to advance a runner, Griffey wasn't asked to, and by the looks of Edwin's feeble attempt, he should not have been expected to. The Arizona booth guy mentioned that Jr. had no sac bunt since '03 (or was it '04?) and that Encarnacion has never had one yet.
I think there are some coaches on this board who could better explain this, but it looks like (A) the bunter is often too far back in the box to keep the ball in fair ground, (B) the bat is not far enough in front to eyeball the pitch contacting the bat, (C) the bat easily covers the middle/in part of the zone but not the outside pitch, (D) there is a lot of "stabbing" at the ball, especially at outside pitches (perhaps caused by "C").
Possible practice drill remedies: (1) screw, velcro, or otherwise attach a kid's small fielder's glove to the bat's sweet spot, and "catch" (no stabbing) the batting practice pitches in that glove -- this presumes that the bunter has been already been told/shown/ coached as to the proper stance, arm, hand positions, etc.;
(2) do everything in #1, except replace the little glove with a baseball-size hole drilled part-way or all of the way through the bat;
(3) a more "disciplined" BP -- or at least as much is feasible with adult professionals -- in which no one gets to swing from the heels or play "homerun derby" until he has mastered angling the bat (bunts toward 1B or 3B) and the soft-hands RECEIVING of the ball onto the bat as opposed to pushing or slapping at the pitch.
Much of the above sounds more suitable for Pee Wee League, but it might be justifiable if one deems it important enough for a contender to be able to execute a sac bunt every once in a while, ala the Diamondbacks, for instance.
We've all witnessed the light-hearted, half-hearted two bunts each guy does in pregame BP. Is it reasonable to spend as much time and effort on CORRECT bunting as it is on the practice of pick-off plays at second base, for example? How many lost scoring opportunities and game losses must be endured before Jerry -- or someone in charge -- takes seriously the Reds' inability to bunt?